rarefaction

[ rair-uh-fak-shuh n ]
/ ˌrɛər əˈfæk ʃən /

noun

the act or process of rarefying.
the state of being rarefied.

Origin of rarefaction

1595–1605; < Medieval Latin rārēfactiōn- (stem of rārēfactiō), equivalent to Latin rārēfact(us) (past participle of rārēfacere; see rarefy) + -iōn- -ion

OTHER WORDS FROM rarefaction

rar·e·fac·tion·al, adjectiverar·e·fac·tive [rair-uh-fak-tiv] /ˌrɛər əˈfæk tɪv/, adjective

WORDS THAT MAY BE CONFUSED WITH rarefaction

diffraction diffusion reflection rarefaction refraction
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rarefaction

British Dictionary definitions for rarefaction

rarefaction

rarefication (ˌrɛərɪfɪˈkeɪʃən)

/ (ˌrɛərɪˈfækʃən) /

noun

the act or process of making less dense or the state of being less dense

Derived forms of rarefaction

rarefactional, rareficational or rarefactive, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for rarefaction

rarefaction
[ râr′ə-făkshən ]

n.

A decrease in density and pressure in a medium, such as air, caused by the passage of a sound wave.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for rarefaction

rarefaction
[ râr′ə-făkshən ]

A decrease in density and pressure in a medium, such as air, especially when caused by the passage of a wave, such as a sound wave.
The region in which this occurs.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.