Outside the embryonic body; e.g., those membranes involved with the embryo's protection and nutrition which are discarded at birth without being incorporated in its body.

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ex·tra·em·bry·on·ic -.em-brē-'än-ik adj situated outside the embryo proper esp developed from the zygote but not part of the embryo <\extraembryonic membranes>

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ex·tra·em·bry·on·ic (eks″trə-em″bre-onґik) external to the embryo proper, as the extraembryonic coelom or extraembryonic membranes. Cf. intraembryonic.

Medical dictionary. 2011.

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  • extraembryonic — adjective Date: 1901 situated outside the embryo; especially developed from the zygote but not part of the embryo < extraembryonic membranes > …   New Collegiate Dictionary

  • extraembryonic — adjective Inside the womb, but outside the embryo. Subsequent cell and tissue interactions lead to the functional differentiation of all embryonic and extraembryonic tissues …   Wiktionary

  • extraembryonic coelom — n the space between the chorion and amnion which in early stages is continuous with the coelom of the embryo proper * * * the cavity, lined with mesoderm, that surrounds the embryo from the earliest stages of development. It communicates… …   Medical dictionary

  • Extraembryonic coelom — Infobox Embryology Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Caption2 = System = CarnegieStage = 6a Days = 12 Precursor = Heuser s membrane GivesRiseTo = MeshName = MeshNumber = DorlandsPre = c 44 DorlandsSuf = 12247640 The… …   Wikipedia

  • extraembryonic — adj. [L. extra, outside; Gr. embryon, fetus] Outside the body of the embryo …   Dictionary of invertebrate zoology

  • extraembryonic — /ek streuh em bree on ik/, adj. 1. situated outside the embryo. 2. pertaining to structures outside the embryo. [EXTRA + EMBRYONIC] * * * …   Universalium

  • extraembryonic — adj. occurring outside of an embryo …   English contemporary dictionary

  • extraembryonic — ex·tra·embryonic …   English syllables

  • extraembryonic — ex•tra•em•bry•on•ic [[t]ˌɛk strəˌɛm briˈɒn ɪk[/t]] adj. 1) dvl situated outside the embryo 2) dvl pertaining to structures that lie outside the embryo …   From formal English to slang

  • extraembryonic — …   Useful english dictionary

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