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Webster 1913 Edition
Rarefaction
Rarˊe-fac′tion
(rărˊē̍-făk′shŭn)
, Noun.
[Cf. F.
raréfaction
. See Rarefy
.] The act or process of rarefying; the state of being rarefied; – opposed to condensation;
as, the
. rarefaction
of airWebster 1828 Edition
Rarefaction
RAREFAC'TION
,Noun.
The act or process of expanding or distending bodies, by separating the parts and rendering the bodies more rare or porous, by which operation they appear under a larger bulk, or require more room, without an accession of new matter; opposed to condensation; as the rarefaction of air.