homo_erectus
1. [ noun ] (anthropology,sociology) a member of an extinct species of human being; probably an ancestor of modern man
Related terms: primitive Peking_man Java_man homo
2. [ noun ] (zoology) extinct species of primitive hominid with upright stature but small brain
Examples:

Homo erectus was formerly called Pithecanthropus erectus"

Related terms: homo Peking_man Java_man genus_Homo