What does gamma mean in Latin?

gamma, a noun, means “the Greek letter”.

noun

gamma

gamma, ae, f., = γάμμα,

I. the Greek letter Γ, gamma.

I. Lit., Aus. Idyll. de Lit. 12, 21.—

II. Transf., in the agrimensores, the rectangular shape of a field, Auct. de Limit. p. 278 and 309 Goes.