rarefaction

(redirected from rarefaction of bone)
Also found in: Dictionary, Thesaurus, Medical.
Related to rarefaction of bone: ectopic bone, bone apposition

rarefaction

[¦rer·ə¦fak·shən]
(acoustics)
The instantaneous, local reduction in density of a gas resulting from passage of a sound wave, or the region in which the density is reduced at some instant. Also known as rarefraction.