Main Entry: la·bel·lum

Pronunciation: \lə-ˈbe-ləm\

Function: noun

Inflected Form(s): plural la·bel·la \-lə\

Etymology: New Latin, from Latin, diminutive of labrum lip — more at lip

Date: 1830

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