4
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
used before a singular noun to mean one of a group, when it is not a particular one
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
afterprepositionUS /ˈæftər/
later than; following
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
the form of “a” used before a word that begins with a vowel sound
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
used to join words or parts of a sentence that go together
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
apparatusnounUS /ˌæpərˈætəs/
equipment designed to serve a specific function
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
areauxiliary verbUS /ɑːr/
the form of “be” used with you, we, they, or a plural noun
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
writes (books or stories or articles or the like) professionally (for pay)
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
a written work or composition that has been published (printed on pages bound together)
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
bracketsnounUS /ˈbrækəts/
plural of “bracket” — a category falling within certain defined limits
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
BubblesnounUS /ˈbʌbəlz/
plural of “bubble” — a hollow globule of gas (e.g., air or carbon dioxide)
From this reading =FUN WITH SOAP-BUBBLES.= A book and complete outfit of apparatus for _Fancy Bubbles and Films_.
showing who or what does the action
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
plural of “character” — an imaginary person represented in a work of fiction (play or film or story)
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
chemicaladjectiveUS /ˈkeməkəl/
relating to or used in chemistry
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
come or bring to a finish or an end
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
coppernounUS /ˈkɑːpər/
a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
curlyadjectiveUS /ˈkɜːrli/
(of hair) having curls or waves
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
CuSO
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
ELECTRICITYnounUS /ɪˌlekˈtrɪsəti/
a physical phenomenon associated with stationary or moving electrons and protons
From this reading =FUN WITH ELECTRICITY.= A book and complete outfit of apparatus for _Sixty Experiments_.
enclosedadjectiveUS /enˈkloʊzd/
closed in or surrounded or included within
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
an item of information that is typical of a class or group
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
ExperimentsnounUS /ɪkˈsperəmənts/
plural of “experiment” — the act of conducting a controlled test or investigation
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
something many people believe that is false
From this reading =FUN WITH SOAP-BUBBLES.= A book and complete outfit of apparatus for _Fancy Bubbles and Films_.
FilmsnounUS /fɪlmz/
plural of “film” — a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement
From this reading =FUN WITH SOAP-BUBBLES.= A book and complete outfit of apparatus for _Fancy Bubbles and Films_.
intended to be given to, or used by, somebody
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
formulanounUS /ˈfɔːrmjələ/
a group of symbols that make a mathematical statement
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
the cardinal number that is the sum of three and one
From this reading =FUN WITH PUZZLES.= A book, key and complete outfit for _Four Hundred Puzzles_.
activities that are enjoyable or amusing
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
https
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
ten 10s
From this reading =FUN WITH PUZZLES.= A book, key and complete outfit for _Four Hundred Puzzles_.
metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
From this reading =FUN WITH PUZZLES.= A book, key and complete outfit for _Four Hundred Puzzles_.
MAGNETISMnounUS /ˈmæɡnətɪzəm/
attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
belonging to, or connected with, somebody or something
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
outfitnounUS /ˈaʊtfɪt/
any cohesive unit such as a military company
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
PUZZLESnounUS /ˈpʌzəlz/
plural of “puzzle” — a particularly baffling problem that is said to have a correct solution
From this reading =FUN WITH PUZZLES.= A book, key and complete outfit for _Four Hundred Puzzles_.
Identical; not different.
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
perceive by sight or have the power to perceive by sight
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
SixtyadjectiveUS /ˈsɪksti/
being ten more than fifty
From this reading =FUN WITH ELECTRICITY.= A book and complete outfit of apparatus for _Sixty Experiments_.
Sixty-Oneadjective
being one more than sixty
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.
SOAP-BUBBLES
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading =FUN WITH SOAP-BUBBLES.= A book and complete outfit of apparatus for _Fancy Bubbles and Films_.
subscripts
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
sulfatenounUS /ˈsʌlfeɪt/
a salt or ester of sulphuric acid
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
underscoreverbUS /ˌʌndərˈskɔːr/
give extra weight to (a communication)
From this reading See https:// Characters enclosed by curly brackets after an underscore are subscripts (example: CuSO_{4} [the chemical formula of copper sulfate]).
in the company of; together with
From this reading _BY THE SAME AUTHOR._ =FUN WITH MAGNETISM.= A book and complete outfit of apparatus for _Sixty-One Experiments_.