[proh-toh-hyoo-muh n or, often, -yoo-]
of, relating to, or resembling extinct hominid populations that had some but not all the features of modern Homo sapiens.
a protohuman animal.
Origin of protohuman
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any of various prehistoric primates that resembled modern man
of or relating to any of these primates
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Any of various extinct hominids or other extinct primates that were primitive predecessors or ancestors of humans.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.