- gossamer [gäs′əmər ēgäs′ə mər]n.[ME gosesomer, lit., goose summer: with allusion to the warm period in fall ( St. Martin's summer) when geese are in season and gossamer is chiefly noticed]1. a filmy cobweb floating in the air or spread on bushes or grass2. a very thin, soft, filmy cloth☆ 3. former a lightweight waterproof coat4. anything like gossamer in lightness, flimsiness, etc.adj.light, thin, and filmy: also gossamery [gäs′əmər ē]
English World dictionary. V. Neufeldt. 2014.