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Showing results for rarefy. Search instead for rarey.
Synonyms

rarefy

American  
[rair-uh-fahy] / ˈrɛər əˌfaɪ /

verb (used with object)

rarefied, rarefying
  1. to make rare or rarer; make less dense.

    to rarefy a gas.

  2. to make more refined, spiritual, or exalted.


verb (used without object)

rarefied, rarefying
  1. to become rare or less dense; become thinned.

    Moisture rarefies when heated.

rarefy British  
/ ˈrɛərɪˌfaɪ /

verb

  1. to make or become rarer or less dense; thin out

"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

Other Word Forms

Etymology

Origin of rarefy

First recorded in 1350–1400; Middle English rarefien, from Middle French rarefier, from Medieval Latin rārificāre, from Latin rārēfacere, equivalent to rārē-, irregular, unexplained combining form of rārus + facere “to make”; see origin at rare 1, -fy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Although these sculptures pay tribute to commercialism, they rarefy it to something austere — or at least as austere as anything with pulsing green lights can be.

From Washington Post Apr. 19, 2018

Of course it’s serious, and art is serious, but I’m not going to rarefy it.”

From New York Times Dec. 16, 2011

It contains moist air and a movable diaphragm or piston to rarefy it suddenly.

From Time Magazine Archive

But extend this vapour, rarefy it; from so narrow a room as our natural bodies, to any politic body, to a state.

From Devotions Upon Emergent Occasions Together with Death's Duel by Donne, John

The hot air in the smoke flues will warm the separating brick partition, and consequently rarefy the air in the ventilating flue.

From A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) by Cutter, Calvin

Such is the rarefied air they're breathing at this World Cup, what we said in previewing Haiti can be said again in looking forward to Morocco.

From BBC Jun. 19, 2026

The poaching has created a well-compensated game of musical chairs that has reshuffled the rarefied roster of lawyers considered go-to advocates before the nation’s high court.

From The Wall Street Journal Apr. 24, 2026

They experienced a rarefied state — a gap between life and death as narrow as the notch they were attempting to clear at dusk Saturday.

From Los Angeles Times Apr. 13, 2026

Their stakes are real, but the dispute comes to the court in such rarefied doctrinal form that the underlying injury almost disappears.

From Slate Apr. 10, 2026

There was always sunshine, always a tiny sticking in the throat from the rarefied air.

From "Catch-22" by Joseph Heller

After rarefying to 5,000 sequences per sample, a total of 307,572 unique sequences were contained in the 96 studies and 23,828 samples of the ‘QC-filtered’ Deblur 90-bp observation table.

From Nature Oct. 31, 2017

A head of one hundred and eighty degrees is sufficient to diminish the weight of the air it contains to the extent of one-half, by rarefying it.

From Five Weeks in a Balloon by Verne, Jules

On rarefying the gas still more, a few large ramifications were obtained of a pale bluish colour, utterly unlike those in nitrogen.

From Experimental Researches in Electricity, Volume 1 by Faraday, Michael

And with regard to their balsamic and aromatic nature, these qualities warm the stomach and expel wind, by rarefying the flatuous exhalations from chyle in the prima viæ.

From A Treatise on Foreign Teas Abstracted From An Ingenious Work, Lately Published, Entitled An Essay On the Nerves by Smith, Hugh

And here, it is proper to add, that all aromatics, by rarefying the blood, are cordial.

From A Treatise on Foreign Teas Abstracted From An Ingenious Work, Lately Published, Entitled An Essay On the Nerves by Smith, Hugh

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