Definitions for: Rarefy


[v] weaken the consistency of (a chemical substance)
[v] make more subtle or refined
[v] lessen the density or solidity (of a substance); "The bones are rarefied"



Webster (1913) Definition: Rar"e*fy, v. t. [imp. & p. p. Rarefied; p. pr. & vb.
n. Rarefying.] [F. rar['e]fier; L. rarus rare + -ficare (in
comp.) to make; cf. L. rarefacere. See -fy.]
To make rare, thin, porous, or less dense; to expand or
enlarge without adding any new portion of matter to; --
opposed to condense.


Rar"e*fy, v. i.
To become less dense; to become thin and porous. ``Earth
rarefies to dew.'' --Dryden.

Synonyms: attenuate, sublimate, subtilize

See Also: alter, change, weaken

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