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rarefy Line breaks: rar¦efy
Pronunciation: /ˈrɛːrɪfʌɪ/

Entry from British & World English dictionary

(also rarify)

Definition of rarefy in English:

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

Origin

Late Middle English: from Old French rarefier, or medieval Latin rareficare, based on Latin rarus 'rare' + facere 'make'.

Derivatives

rarefication

1
Pronunciation: /rɛːrɪfɪˈkeɪʃ(ə)n/
noun

rarefactive

2
Pronunciation: /rɛːrɪˈfaktɪv/
adjective

Words that rhyme with rarefy

petrify • electrify • gentrify

Definition of rarefy in:

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