Medical Dictionary


noun rar·e·fac·tion \ˌrar-ə-ˈfak-shən, ˌrer-\

Medical Definition of RAREFACTION

:  the action or process of rarefying
:  the quality or state of being rarefied; especially :  an increase in porosity <areas of rarefaction in the bones>
:  a state or region of minimum pressure in a medium transversed by compressional waves (as sound waves) <the eardrum vibrates according to the compressions and rarefactions of the sound wave>
rar·e·fac·tion·al \-shnəl, -shən-əl\ adjective


July 01, 2015
precarious Hear it
not certain, secure, or steady
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