labellum

(redirected from labelloid)
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labellum

[lə′bel·əm]
(botany)
The median membrane of the corolla of an orchid often differing in size and morphology from the other two petals.
(invertebrate zoology)
A prolongation of the labrum in certain beetles and true bugs.
In Diptera, either of a pair of sensitive fleshy lobes consisting of the expanded end of the labium.