427
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
428
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
used before a singular noun to mean one of a group, when it is not a particular one
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
accompanyingadjectiveUS /əˈkʌmpəniɪŋ/
occurring with or following as a consequence
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
the form of “a” used before a word that begins with a vowel sound
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
used to join words or parts of a sentence that go together
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
third-person singular of “appear” — give a certain impression or have a certain outward aspect
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
at the same time that; because; in the way that
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
in or near a particular place or position
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
batterynounUS /ˈbætəri/
group of guns or missile launchers operated together at one place
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
used with a past participle to form the passive, or with -ing for continuous tenses
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
third-person singular of “become” — enter or assume a certain state or condition
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
brisklyadverbUS /ˈbrɪskli/
in a brisk manner
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
showing who or what does the action
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
cellsnounUS /selz/
plural of “cell” — any small compartment
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
of a particle or body or system; having a net amount of positive or negative electric charge
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
ChicagonounUS /ʃəˈkɑːɡoʊ/
largest city in Illinois; a bustling Great Lakes port that extends 26 miles along the southwestern shoreline of Lake Michigan
From this reading --Contributed by E. W. Davis, Chicago.
artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
ContributedverbUS /kənˈtrɪbjuːtɪd/
past form of “contribute” — bestow a quality on
From this reading --Contributed by E. W. Davis, Chicago.
absence of light or illumination
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
DavisnounUS /ˈdeɪvəs/
English navigator who explored the Arctic while searching for the Northwest Passage (1550-1605)
From this reading --Contributed by E. W. Davis, Chicago.
free from liquid or moisture; lacking natural or normal moisture or depleted of water; or no longer wet
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body
From this reading --Contributed by E. W. Davis, Chicago.
a phenomenon that follows and is caused by some previous phenomenon
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
ExperimentnounUS /ɪkˈsperəmənt/
the act of conducting a controlled test or investigation
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
filamentnounUS /ˈfɪləmənt/
a very slender natural or synthetic fiber
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
the cardinal number that is the sum of three and one
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
globenounUS /ɡloʊb/
the 3rd planet from the sun; the planet we live on
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
having desirable or positive qualities especially those suitable for a thing specified
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
cause to continue in a certain state, position, or activity; e.g., “keep clean”
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
How
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
inside something, or within a place, period, or state
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
IncandescentadjectiveUS /ˌɪnkənˈdesənt/
emitting light as a result of being heated
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
inductionnounUS /ˌɪnˈdʌkʃən/
a formal entry into an organization or position or office
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
located inward
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
the form of “be” used with he, she, it, or a singular noun
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
a thing, animal, or idea already mentioned
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
an artificial source of visible illumination
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
luminousadjectiveUS /ˈluːmənəs/
softly bright or radiant
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
engage in
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
mechanicaladjectiveUS /məˈkænɪkəl/
using (or as if using) mechanisms or tools or devices
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
MotornounUS /ˈmoʊtər/
machine that converts other forms of energy into mechanical energy and so imparts motion
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
used to say something is necessary, or almost certainly true
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
come into possession of
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
belonging to, or connected with, somebody or something
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
touching and supported by a surface
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
used to join alternatives or possibilities
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
a judge of a probate court
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
completely and without qualification; used informally as intensifiers
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
a separate part of a whole
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
possession of controlling influence
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
with considerable certainty; without much doubt
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
past form of “produce” — bring forth or yield
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
resultsnounUS /rɪˈzʌlts/
plural of “result” — a phenomenon that follows and is caused by some previous phenomenon
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
revolvingverbUS /riˈvɑːlvɪŋ/
-ing form of “revolve” — turn on or around an axis or a center
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
an area within a building enclosed by walls and floor and ceiling
From this reading The room must be dark and the lamp perfectly dry to obtain good results.
rubbingnounUS /ˈrʌbɪŋ/
the resistance encountered when one body is moved in contact with another
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
move fast by using one's feet, with one foot off the ground at any given time
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
Identical; not different.
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
inflected form of “show” — give an exhibition of to an interested audience
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
plural of “show” — the act of publicly exhibiting or entertaining
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
marked by correspondence or resemblance
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
sketchnounUS /sketʃ/
preliminary drawing for later elaboration
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
to a small degree or extent
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
limited or below average in number or quantity or magnitude or extent
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
on certain occasions or in certain cases but not always
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
of a quantity that can fulfill a need or requirement but without being abundant
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
the outer boundary of an artifact or a material layer constituting or resembling such a boundary
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
used to introduce what somebody said, thought, or felt
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
the cardinal number that is the sum of one and one and one
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
an instance or single occasion for some event
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
used before the base form of a verb to make the infinitive
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
toysnounUS /tɔɪz/
plural of “toy” — an artifact designed to be played with
From this reading ** How to Make a Small Motor [428] The accompanying sketch shows how to make a small motor to run on a battery of three or four dry cells and with sufficient power to run mechanical toys.
tubenounUS /tuːb/
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite
From this reading --Contributed by E. W. Davis, Chicago.
at the time that
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
used to talk about the future, or about willingness
From this reading It appears that the inner surface of the globe becomes charged, probably by induction, and will sometimes hold the filament as shown in the sketch.
in the company of; together with
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
X-raynounUS /ˈeksreɪ/
electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
From this reading ** Experiment with an Incandescent Lamp [427] When rubbing briskly an ordinary incandescent lamp on a piece of cloth and at the same time slightly revolving it, a luminous effect is produced similar to an X-ray tube.
