from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A theoretical primate postulated to bridge the evolutionary gap between the anthropoid apes and humans. Not in scientific use.
  • n. Something lacking that is needed to complete a series.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hypothetical primate once thought necessary to explain a perceived evolutionary gap between apes and humans.
  • n. Any sought-after or valuable intermediary figure or position.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. hypothetical organism formerly thought to be intermediate between apes and human beings


Sorry, no etymologies found.


  • I had long suspected that there had indeed been a connection and that the Knights Templar, through their discoveries during the Crusades, might have formed the missing link in the chain of transmission of secret architectural knowledge…St Bernard, the Templars' patron, had defined God—astonishingly for a Christian—as ‘length, width, height and depth’.

    The Templar Revelation

  • And Alobar intuited that it was the missing link in the evolution of the perfect perfume.

    La insistencia de Jürgen Fauth

  • Diverge, and traces of a missing link lost in the sea that enlarged her form and stripped her fur and changed her contours -- and left cousins behind to revert to an earlier, more streamlined shape, but still airbreathing and milk-nursing.

    The Clan of the Cave Bear


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