Dictionary

labellum

noun la·bel·lum \lə-ˈbe-ləm\
plural la·bel·la \-lə\

Definition of LABELLUM

1
:  the median and usually most morphologically distinct member of the corolla of an orchid
2
:  a terminal part of the labium or labrum of various insects

Origin of LABELLUM

New Latin, from Latin, diminutive of labrum lip — more at lip
First Known Use: 1830

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