rarefy

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rar·e·fy

(rār'ĕ-fī),
To become light or less dense.

rarefy

(rār′ĕ-fī)
To make less dense; to increase the porosity of something.
References in periodicals archive ?
Eighteen-carat rose gold - Rarefied, the art installation at Tatton Gardens
A July 2004 symposium highlighted recent advances in rarefied gas dynamics (RGD).
They're smart, responsible adults in a rarefied profession and they should be treated that way.
rather than at it with vague pronunciamentos and rarefied cultural criticism that fails to take into account where people (dare I say the masses?
It takes less than 100 years for the pressure exerted by photons streaming from Beta Pictoris to blow tiny dust particles from the disk into more rarefied regions of space.
Dudley Kingswinford live to fight a fifth year of National status after beating Longton 13-8, completing a double over the Potteries club who had long condemned to return to Midlands One after just one arduous season at rarefied level.
He ensconced himself in the rarefied world of fin-de-siecle Parisian society, and then watched up close and in horror as his aristocratic friends fled the guillotine.
We are in rarefied territory for dotcoms," said Figleaves.
What is conveniently Forgotten is that a $10,000-difference matters little in this rarefied atmosphere, especially when the image, pedigree, value and performance measures (much more than 0-60 mph and quarter-mile times] meet or exceed expectations.
There are glass angels, beeswax candles, wind-up toys and the alluring smells of gingerbread and mulled wine wafting through the rarefied air.
His sensitivity to points of connection between the varied writers he sees as representing the Canricles tradition leads him at times into rarefied abstractions.