flabellum

flabellum (noun; plural flabella; Latin flabellum, fan): 1. Any leaflike or fanlike process.

2. (Arthropoda: Crustacea) The thin distal exite of a branchiopod; or epipodite of a thoracopod.

3. (Arthropoda: Insecta) A transparent distal lobe of the glossa of bees

See also: bouton.