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oogamy

British  
/ əʊˈɒɡəmɪ /

noun

  1. sexual reproduction involving a small motile male gamete and a large much less motile female gamete: occurs in all higher animals and some plants

"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
oogamy Scientific  
/ ō-ŏg′ə-mē /

  1. A system of sexual reproduction in which one gamete (called the egg) is large and nonmotile, while the other (called the sperm) is small and motile. Oogamy is a type of heterogamy.

  2. Compare isogamy

Other Word Forms

  • oogamous adjective

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.