rarefactional

rarefaction

[rair-uh-fak-shuhn]
noun
1.
the act or process of rarefying.
2.
the state of being rarefied.

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

rarefactional, adjective
rarefactive [rair-uh-fak-tiv] , adjective

diffraction, diffusion, reflection, rarefaction, refraction.
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World English Dictionary
rarefaction or rarefication (ˌrɛərɪˈfækʃən, ˌrɛərɪfɪˈkeɪʃən)
 
n
the act or process of making less dense or the state of being less dense
 
rarefication or rarefication
 
n
 
rare'factional or rarefication
 
adj
 
rarefi'cational or rarefication
 
adj
 
rare'factive or rarefication
 
adj

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American Heritage
Medical Dictionary

rarefaction rar·e·fac·tion (râr'ə-fāk'shən)
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.
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American Heritage
Science Dictionary
rarefaction   (râr'ə-fāk'shən)  Pronunciation Key 
  1. 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.

  2. The region in which this occurs.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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