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labella |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Labellum \La*bel"lum\, n.; pl L. {Labella}, E. {Labellums}. [L., dim. of labrum lip.] 1. (Bot.) The lower or apparently anterior petal of an orchidaceous flower, often of a very curious shape. 2. (Zo["o]l.) A small appendage beneath the upper lip or labrum of certain insects.