Aerogel meaning

ârə-jĕl
A highly porous solid formed from a gel, such as silica gel, in which the liquid is replaced with a gas.
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A substance formed by the suspension of small bubbles of gas in a liquid or solid: the reversal of an aerosol.
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Designating or of a small container in which gas under pressure is used to aerate and dispense foam through a valve.
adjective
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A porous, ultralight solid-state substance, similar to gel, in which the liquid component is replaced with gas.
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Origin of aerogel

  • aero- +‎ gel

    From Wiktionary