See Also: labellum(medicine)
labellum(dictionary)

labellum (iou)



labellum noun. . E19.
[Latin, dim. of labrum lip.]
Entomology. Either of a pair of lobes terminating the proboscis of certain insects. E19.
Botany. The lowest segment of the inner whorl of perianth segments of an orchid, usu. larger and different in shape from the remainder. M19.