Rarefaction
[,rєәri'fækʃәn]
Definition
(noun.) a decrease in the density of something; 'a sound wave causes periodic rarefactions in its medium'.
Typed by Chauncey--From WordNet
Definition
(n.) The act or process of rarefying; the state of being rarefied; -- opposed to condensation; as, the rarefaction of air.
Inputed by Alisa
Examples
- The pulse of condensation and rarefaction which travels the length of the wire is called a wave, although it bears little or no resemblance to the familiar water wave. Bertha M. Clark. General Science.
- Sound waves may be said to consist of a series of condensations and rarefactions, and the distance between two consecutive condensations and rarefactions may be defined as the wave length. Bertha M. Clark. General Science.
Checker: Raffles