- a filmy cobweb floating in the air or spread on bushes or grass
- a very thin, soft, filmy cloth
- a lightweight waterproof coat
- anything like gossamer in lightness, flimsiness, etc.
Origin of gossamerMiddle English gosesomer, literally , goose summer: with allusion to the warm period in fall (St. Martin's summer) when geese are in season and gossamer is chiefly noticed