hominine adjective 1noun 1forms 3 adjective1 •Of or relating to the Homininae, a subfamily of Hominidae that includes humans, gorillas, chimpanzees, and some extinct relatives. noun1 •Any member of the subfamily Homininae.To judge from its sinuses, Hispanopithecus crusafonti is the earliest known hominine (the group including all great apes except orangs). — 2018 formshominines · more hominine · most hominine