temporal gyrus

noun

: any of three major convolutions of the external surface of the temporal lobe of a cerebral hemisphere that are arranged approximately horizontally with one above the other:

a

: the one that is uppermost and borders the sylvian fissure

called also superior temporal gyrus

b

: one lying in the middle between the other two

called also middle temporal gyrus

c

: the lowest of the three

called also inferior temporal gyrus