oogamous


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o·og·a·mous

 (ō-ŏg′ə-məs)
adj.
Characterized by or having small motile male gametes and large nonmotile female gametes.

o·og′a·my n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.