| / English Dictionary |
RAREFACTION
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A decrease in the density of something
Example:
a sound wave causes periodic rarefactions in its medium
Classified under:
Hypernyms ("rarefaction" is a kind of...):
concentration (increase in density)
Derivation:
rarefy (weaken the consistency of (a chemical substance))
rarefy (lessen the density or solidity of)
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