Definition of labrum in English:

labrum

Line breaks: la¦brum
Pronunciation: /ˈleɪbrəm
 
/

noun (plural labra /-brə/)

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

adjective

Definition of labrum in:

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Word of the day abjure
Pronunciation: əbˈdʒʊə
verb
solemnly renounce (a belief, cause, or claim)