oviparity


oviparity

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      expulsion of undeveloped eggs rather than live young. The eggs may have been fertilized before release, as in birds and some reptiles, or are to be fertilized externally, as in amphibians and many lower forms. In general, the number of eggs produced by oviparous species greatly exceeds the number of offspring from species that bear live young, but the chances of survival are diminished because of the lack of maternal protection. Compare viviparity.

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Universalium. 2010.

Look at other dictionaries:

  • Oviparity — O vi*par i*ty, n. [See {Oviparous}.] (Biol.) Generation by means of ova. See {Generation}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Oviparity — Oviparous animals are animals that lay eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, reptiles, all birds, the monotremes, and most insects, some molluscs and… …   Wikipedia

  • oviparity — production of eggs that hatch and develop outside the body …   Dictionary of ichthyology

  • oviparity — noun The condition of being oviparous …   Wiktionary

  • oviparity — The quality of being oviparous. [ovi + L. pario, to bear] * * * ovi·par·i·ty .ō və par ət ē n, pl ties the quality or state of being oviparous * * * ovi·par·i·ty (o″vĭ parґĭ te) the quality of being oviparous …   Medical dictionary

  • oviparity — əʊvɪ pærÉ™tɪ n. laying of eggs …   English contemporary dictionary

  • oviparity — ovi·par·i·ty …   English syllables

  • oviparity — ˌōvəˈparəd.ē noun ( es) Etymology: probably from (assumed) New Latin oviparitat , oviparitas, from Latin oviparus oviparous + itat , itas ity : the quality or state of being oviparous …   Useful english dictionary

  • multiple oviparity — a system in sharks where females retain several pairs of egg cases in the oviducts, the embryo growing to an advanced stage. The eggs may hatch within a month of laying, e.g. in the scyliorhinid Halaelurus in aquaria, although not known in the… …   Dictionary of ichthyology

  • oviparous — oviparity /oh veuh par i tee/, oviparousness, n. oviparously, adv. /oh vip euhr euhs/, adj. Zool. producing eggs that mature and hatch after being expelled from the body, as birds, most reptiles and fishes, and the monotremes. [1640 50; < L… …   Universalium


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