aerogels
/ˈɛroʊˌdʒɛlz/
noun
- Plural form of aerogel; multiple types or pieces of this ultra-light, porous solid material.
- The lab produced several aerogels with varying densities for testing.
- Different aerogels can be made from silica, carbon, or metal oxides.
- Aerogels are used in everything from space suits to tennis rackets.