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Producing eggs that hatch outside the body.

o′vi·par′i·ty (ō′və-păr′ĭ-tē) n.
o·vip′a·rous·ly adv.
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.
References in periodicals archive ?
The ovaries of the smooth lumpsucker are characterized by the absence of sperm in all gonads, indicating gonochorism, oviparity, and external fertilization (Devlin and Nagahama, 2002).
'Grass snake exploit anthropogenic heat sources to overcome distributional limits imposed by oviparity'.
Heisermann, "Regulation of vitellogenesis in reptiles: correlations with oviparity and viviparity," in Proceedings of the 9th International Symposium on Comparative Endocrinology, Current Trends in Comparative Endocrinology, pp.
Researchers from the University of Exeter and the University of Lincoln investigated the hypotheses that historical invasions of cold climates by Liolaemus lizards - one of the most diverse groups of vertebrates on earth - have only been possible due to their evolution to viviparity (live birth) from oviparity (laying eggs).
Members of the genus Bythaelurus variably display retained oviparity, probably giving birth to live young with egg capsules observed in utero being described as thin, fragile bags (eg.
Great differences may be observed, from oviparity to aplacental viviparity, so that it is difficult to use similar techniques for all of them (Demski, 1990).