单词 | rarefy |
释义 | rarefy/ˈrɛːrɪfʌɪ![]() (also rarify) verb (rarefies, rarefying, rarefied) Make or become less dense or solid: [with object]: air rarefies and degrounds the physical body [no object]: as the shell continues to expand and rarefy, astronomers may eventually be able to see characteristic gamma rays from the radioactivity within...
Derivativesrarefication
rarefactive
OriginLate Middle English: from Old French rarefier, or medieval Latin rareficare, based on Latin rarus 'rare' + facere 'make'. |
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