marriage with only one person at a time. Compare bigamy, polygamy.
Zoology. the practice of having only one mate.
the practice of marrying only once during life.
Compare digamy.

1605–15; < Late Latin monogamia < Greek monogamía. See mono-, -gamy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
monogamy (mɒˈnɒɡəmɪ)
1.  bigamy polygamy Compare digamy the state or practice of having only one husband or wife over a period of time
2.  zoology the practice of having only one mate
[C17: via French from Late Latin monogamia, from Greek; see mono- + -gamy]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

1610s, from Fr. monogamie, from L.L. monogamia, from Gk. monogamia, from monogamos "marrying only once," from monos "single, alone" + gamos "marriage."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

monogamy mo·nog·a·my (mə-nŏg'ə-mē)

  1. The practice or condition of being married to only one person at a time.

  2. The condition of having only one mate.

mo·nog'a·mous adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary
monogamy [(muh-nog-uh-mee)]

A form of marriage in which one man is united with one woman. (Compare polyandry and polygamy.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Britannica


the custom that allows a person to be legally married to only one spouse at one time. Appearing in two general forms, monogamy may imply a lifelong contract between two individuals that may be broken only under penalty-as prevails in the Roman Catholic and Hindu prescriptions for marriage-or it may imply that persons are required to be monogamous but may change spouses repeatedly, a practice sometimes called serial monogamy.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
His goal in this chaste romance is avoidance of the monotony that monogamy
  presumably brings.
Dim sum frees you from culinary monogamy, never asking you to commit.
After 28 years of polygamous marriage, Spencer has lived the last 19 years in
In the film, Joey is basically a decent guy with some rough edges and an
  aversion to monogamy.
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