a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
From this reading Why is bad-smelling air dangerous to health?
areauxiliary verbUS /ɑːr/
the form of “be” used with you, we, they, or a plural noun
From this reading What are germs?
bad-smelling
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Why is bad-smelling air dangerous to health?
third-person singular of “become” — enter or assume a certain state or condition
From this reading Name some of the ways in which the blood becomes impure.
The red fluid that circulates in the heart and blood vessels.
From this reading Name some of the ways in which the blood becomes impure.
catchingnounUS /ˈkætʃɪŋ/
(baseball) playing the position of catcher on a baseball team
From this reading Why are some diseases "catching"?
involving or causing danger or risk; liable to hurt or harm
From this reading Why is bad-smelling air dangerous to health?
diseasesnounUS /dɪˈziːzəz/
plural of “disease” — an impairment of health or a condition of abnormal functioning
From this reading Why are some diseases "catching"?
germsnounUS /dʒɜːrmz/
plural of “germ” — anything that provides inspiration for later work
From this reading What are germs?
a healthy state of wellbeing free from disease
From this reading Why is bad-smelling air dangerous to health?
impureadjectiveUS /ˌɪmˈpjʊr/
combined with extraneous elements
From this reading Name some of the ways in which the blood becomes impure.
inside something, or within a place, period, or state
From this reading Name some of the ways in which the blood becomes impure.
the form of “be” used with he, she, it, or a singular noun
From this reading Why is bad-smelling air dangerous to health?
a characteristic state or mode of living
From this reading most necessary to preserve life?
used to form the superlative
From this reading most necessary to preserve life?
assign a specified (usually proper) proper name to
From this reading Name some of the ways in which the blood becomes impure.
absolutely essential
From this reading most necessary to preserve life?
belonging to, or connected with, somebody or something
From this reading Name some of the ways in which the blood becomes impure.
preserveverbUS /prəˈzɜːrv/
keep or maintain in unaltered condition; cause to remain or last
From this reading most necessary to preserve life?
(quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity
From this reading Name some of the ways in which the blood becomes impure.
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading Name some of the ways in which the blood becomes impure.
used before the base form of a verb to make the infinitive
From this reading most necessary to preserve life?
structure consisting of a sloping way down to the water from the place where ships are built or repaired
From this reading Name some of the ways in which the blood becomes impure.
used to ask for information about something
From this reading What are germs?
used to introduce a clause giving more about a thing just mentioned
From this reading Name some of the ways in which the blood becomes impure.
the cause or intention underlying an action or situation, especially in the phrase “the whys and wherefores”
From this reading Why is bad-smelling air dangerous to health?