ˈliŋgyələ noun
Etymology: New Latin, from Latin, small tongue, object like a tongue, from lingua tongue + -ula — more at tongue
1. plural lingu·lae -yəˌlē : a tongue-shaped process or part: as
a. : a ridge of bone in the angle between the body and the greater wing of the sphenoid
b. : an elongated prominence of the vermiform process of the cerebellum
c. : a dependent projection of the upper lobe of the left lung
2.
a. capitalized : the type genus of Lingulidae comprising burrowing brachiopods with very long contractile pedicles that have existed from at least Ordovician time
b. plural lingulae : any brachiopod of the genus Lingula
• lin·gu·lar -_lə(r) adjective