Meaning of GAS in English



One of the three fundamental states of matter , in which matter has no definite shape, is very fluid, and has a density about 0.

1% that of liquid s. Gas is very compressible but tends to expand indefinitely, and it fills any container. A small change in temperature or pressure produces a substantial change in its volume; these relationships are expressed as equations in the gas laws . The kinetic theory of gases , developed in the 19th century, describes gases as assemblages of tiny particles ( atom s or molecule s) in constant motion and contributed much to an understanding of their behaviour. The term gas can also mean gasoline , natural gas , or the anesthetic nitrous oxide . See also solid .


[c mediumvioletred] (as used in expressions)

gas chromatography

gas laws

gas reservoir

intestinal gas

natural gas

nerve gas

laughing gas

noble gas

inert gas

perfect gas

ideal gas

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kinetic theory of gases

Britannica English dictionary.      Английский словарь Британика.