n.
An extinct species of humans, regarded as an ancestor of Homo sapiens.
[New Latin Homō ērēctus, species name : Latin homō, man + Latin ērēctus, upright.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
