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rarefying |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Rarefy \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.
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