Category:Labellum

La*bel"lum, n.; pl. L. Labella, E. Labellums. Etym: [L., dim. of labrum lip.]

1. (Bot.)

Defn: The lower or apparently anterior petal of an orchidaceous flower, often of a very curious shape.

2. (Zoöl.)

Defn: A small appendage beneath the upper lip or labrum of certain insects.