or mo·nog·e·ny

[ mon-uh-jen-uh-sis or muh-noj-uh-nee ]
/ ˌmɒn əˈdʒɛn ə sɪs or məˈnɒdʒ ə ni /


the hypothetical descent of the human race from a single pair of individuals.
Biology. the hypothetical descent of all living things from a single cell.

Nearby words

  1. monogamic,
  2. monogamist,
  3. monogamous,
  4. monogamy,
  5. monogenean,
  6. monogenetic,
  7. monogenic,
  8. monogenism,
  9. monogenous,
  10. monogeny

Origin of monogenesis

First recorded in 1860–65; mono- + -genesis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for monogeny

  • One point seems quite clear, that monogeny is only possible by extending the date of human origins far back into the Tertiaries.

    Human Origins|Samuel Laing
  • The main argument for monogeny has been that the different races of mankind are fertile among themselves.

    Human Origins|Samuel Laing

British Dictionary definitions for monogeny


monogeny (mɒˈnɒdʒɪnɪ)

/ (ˌmɒnəʊˈdʒɛnɪsɪs) /


the hypothetical descent of all organisms from a single cell or organism
asexual reproduction in animals
the direct development of an ovum into an organism resembling the adult
the hypothetical descent of all human beings from a single pair of ancestors
Compare polygenesis

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

Word Origin and History for monogeny



"theory that humankind originated from a single pair of ancestors," 1865; see mono- + -geny.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for monogeny


[ mŏn′ə-jĕnĭ-sĭs ]


The theory that all living organisms are descended from a single cell or organism.
The production of similar organisms in successive generations.
Asexual reproduction, as by sporulation or parthenogenesis.
The process of parasitizing a single host, in or on which the entire life cycle of the parasite is passed.
Related formsmon′o•ge•netic (-jə-nĕtĭk) adj.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.