Alternative form of umbrellabird

Synonym of parasol (“a small light umbrella used as protection from the sun”)

plural of umbellaster

(botany) A group of flowers arising from one point.

plural of umbrella ant

leaf-cutter ant

Initialism of University of Maryland, Baltimore County.

Alternative form of umbrella cover

plural of umbrella-cover

(now rare) The waterproof material that forms the protective upperpart of an umbrella (separate from the stick and ribs). / A protective sheath used to contain a folded-up umbrella when not in use.