n. The largest known anthropoid ape, Troglodytes gorilla, of the family Simiidæ, suborder Anthropoidea, and order Primates, most closely resembling man, especially in the form of the pelvis and in the proportion of the molar teeth to the incisors.n. [capitalized] A genus of Simiidæ, having the gorilla, Gorilla gina or G. savagei, as type and only species.