noun

• A solid material of extremely low density, produced by removing the liquid component from a conventional gel.

  ‘An aerogel is a porous network of silica strands with diameters of a few nanometres.’

  More example sentences

  • ‘To be useful, aerogels must remain firm in different environments - a hurdle that most such materials have not cleared.’
  • ‘A tennis racket-shaped canister packed with a material called aerogel will capture the particles during the flyby.’
  • ‘South, east, and west walls are polycarbonate panels filled with aerogel insulation.’
  • ‘I knew aerogel could trap small moving objects, but I had no idea it was such a good insulator.’