Definition of labrum in English:

labrum

Syllabification: la·brum
Pronunciation: /ˈlābrəm, ˈlabrəm
 
/

noun (plural labra /lābrə, ˈlabrə/)

Zoology
A structure corresponding to a lip, especially the upper border of the mouthparts of a crustacean or insect.

Origin

early 18th century: from Latin, literally 'lip'; related to labium.

Derivatives

labral

Pronunciation: /ˈlābrəl/
adjective

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