aerogel

/ˈɛɹ.oʊ.d͡ʒɛl/

Etymology

From aero- + gel. First attested in the early 1920s as a coinage credited to British-Irish chemist Frederick G. Donnan, originally in reference to coagulated aerosols.

aerogel means A porous, ultralight solid-state substance, similar to gel, in which the liquid component is replaced with gas. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

noun

A porous, ultralight solid-state substance, similar to gel, in which the liquid component is replaced with gas.