- a lip or liplike part.
- the anterior, unpaired member of the mouthparts of an arthropod, projecting in front of the mouth.
- the outer margin of the aperture of a shell of a gastropod.
- Anatomy. a ring of cartilage about the edge of a joint surface of a bone.
Origin of labrum1
- an ornamented bathtub of ancient Rome.
Origin of labrum2
Related Words for labrumrim, spout, projection, border, nozzle, overlap, portal, brim, flare, margin, labium, flange, labrum
Examples from the Web for labrum
Historical Examples of labrum
It will be remembered that the labrum is provided with a groove.Insects and Diseases
Rennie W. Doane
The labrum is considered by some authorities to be the hypopharynx.
They make the puncture and are interlocked with the labrum to form a sucking tube.
There are teeth on each side of the central notch of the labrum.A Monograph on the Sub-class Cirripedia (Volume 2 of 2)
The labrum or upper-lip is fulvous; and the antenn are piceous.An Introduction to Entomology: Vol. II (of 4)
- a lip or liplike part, such as the cuticular plate forming the upper lip of insects
Word Origin for labrum
lip or lip-like part, 1816, in various anatomical and zoological uses, from Latin labrum, cognate with labium "lip" (see lip (n.)). Also noted mid-15c. as the name of some herb.
- A lip-shaped anatomical edge, rim, or structure.