Aerogel

//ˈɛɹ.oʊ.d͡ʒɛl// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A porous, ultralight solid-state substance, similar to gel, in which the liquid component is replaced with gas. countable, uncountable
  2. 2
    a synthetic porous ultralight material derived from a gel, in which the liquid component of the gel has been replaced with a gas wordnet

Example

More examples

"But Mr. Duxbury says that despite its extraordinary lightness, aerogel can be quite sturdy."

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.

Related phrases

X-aerogel

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.