protohominid adjective 1noun 1forms 1 adjective1 •Of or pertaining to these creatures. noun1 •Any of several primitive animals that were evolutionary ancestors of the hominids.Although the ethological studies of chimpanzees cannot present us with a picture of the life of the protohominids, they can give us some insights into what these conditions may have been like. — 1981 formsprotohominids
