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 ?
Playing their third game in ten days - their second on the road - is tough for any team, particularly when asked to do it in the rarefied Colorado air, which takes some getting used to, even for professional athletes.
Among their topics are the main equations and approaches to solutions of the problems in rarefied gas dynamics, modeling the flow of continuous media, determining the aerodynamical characteristics of the returnable space systems, and the general models describing turbulent flows.
He regretted it has already rarefied in this region.
I think the trouble with 'Leaders' is the rarefied atmosphere they breathe.
Rarefied (Phalaenopsis lobbii), is a new work created by artist Jo Coupe, for Tatton Park Biennial.
Armed with a Japan Society commission, the artist has forged his own wordless, intimate journey through this rarefied stage mechanism, with the sly help of video projection.
Caption(s): The rarefied Florian Papp gallery / Thomas Lampson of Lorin Marsh / Designers Leonard Kolwalski, left, and Michael Rosenberg / Joe Lagani of House & Garden / Designer Dennis Roland / Monica Cheslak of the D&D Building
Indeed, Poul's pitching of projects for both film and cable TV underlines a vital reality of making gay-themed projects: The big screen remains rarefied terrain.
Six snappers from the rarefied worlds of art, fashion and journalism present their sideways takes on the maestro's buildings.
A related subplot involves three young MIT math geniuses and offers some fascinating glimpses into the rarefied world of advanced number theory and its personal and technical applications.
If you thought it was a hushed place where solitary researchers hovered in cubicles poring over rarefied texts, that image will be replaced by the report that its corridors are quietly abuzz with intellectual exchange, scholarly sparring, academic mentoring, and the excitement of publishing the wisdom of its collection in new volumes easily accessible to the general reader, even those still in high school.