Definition of rarefy
1 : to make rare, thin, porous, or less dense : to expand without the addition of matter
2 : to make more spiritual, refined, or abstruse
: to become less dense
Recent Examples of rarefy from the Web
But Mr. Affleck loves the Carlyle’s rarefied throwback allure.
And now, thanks to our constantly rarefying visual culture, the young actormen have become precious too — choosing carefully fitted suits or statement bespokery, not a stray hair on their head or face.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rarefy'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of rarefy
Middle English rarefien, rarifien, modification of Latin rarefacere, from rarus rare + facere to make — more at do
First Known Use: 14th century
Medical Definition of rarefy
transitive verb: to make rare, thin, porous, or less dense : to expand without the addition of matter
intransitive verb: to become less dense
Seen and Heard
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