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protohuman

[proh-toh-hyoo-muh n or, often, -yoo-]
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adjective
  1. of, relating to, or resembling extinct hominid populations that had some but not all the features of modern Homo sapiens.
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noun
  1. a protohuman animal.
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Origin of protohuman

First recorded in 1905–10; proto- + human
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for protohuman

protohuman

noun
  1. any of various prehistoric primates that resembled modern man
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adjective
  1. of or relating to any of these primates
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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

protohuman in Science

protohuman

[prō′tō-hyōōmən]
  1. Any of various extinct hominids or other extinct primates that were primitive predecessors or ancestors of humans.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.