the lowest of the three petals forming the corolla of an orchid, usually larger than the other two petals, and often spurred
Origin of labellumModern Latin from L, diminutive of labrum, lip, akin to labium: see lip
- The median petal of an orchid flower, usually different in shape, size, or color from the two lateral petals; lip.
- A liplike part, such as the tip of the labium of certain flies, used for lapping up liquids.
Origin of labellumLatin diminutive of labrum lip ; see leb- in Indo-European roots.
(plural labella or labellums)