Noun: labellum (labella) lu'be-lum
- (botany) the central petal of an orchid flower, often large and distinctively shaped
"The labellum of this orchid species mimics the appearance of a female wasp"
- (zoology) a small flap or appendage beneath the upper lip of certain insects
"The labellum in some flies is used to help collect liquid food"
Derived forms: labella
Encyclopedia: Labellum