Definition of


  1. (noun, event) a decrease in the density of something

via WordNet, Princeton University

Alternate forms of Rarefaction

Derivations: rarefy

Hypernyms: concentration

Words that sound like Rarefaction

reboxetine, refection, reification, reposition, revivification, revocation

via soundex() Hash Matches

Note: If you're looking to improve your vocabulary right now, we highly recommend Ultimate Vocabulary Software.

Word of the Moment


a large and imposing house

Recent Searches

fauceous, fesi, feci, vasi, fiticous