lingula

noun

lin·​gu·​la ˈliŋ-gyə-lə 

plural lingulae -ˌlē 

: 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 superior vermis of the cerebellum

c

: a dependent projection of the upper lobe of the left lung

lingular

-lər 

adjective