Library / 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:

Nouns denoting natural events

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)

Credits