from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An extinct species of humans, regarded as an ancestor of Homo sapiens.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. a taxonomic species, within genus Homo - "Upright man" (extinct)
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. extinct species of primitive hominid with upright stature but small brain
New Latin Homō ērēctus, species name : Latin homō, man + Latin ērēctus, upright.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin homo ("man") + erectus ("erect, high") (Wiktionary)