Embryonal tumor



embryonal tumor or embryonic tumor
n.
A usually malignant tumor arising during intrauterine or early postnatal development from the rudiments of an organ or from immature tissue and forming immature structures characteristic of the part from which it arises. Also called embryoma.

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  • Embryonic

    [em-bree-on-ik] /ˌɛm briˈɒn ɪk/ adjective 1. pertaining to or in the state of an . 2. rudimentary; undeveloped. /ˌɛmbrɪˈɒnɪk/ adjective 1. of or relating to an embryo 2. in an early stage; rudimentary; undeveloped adj. 1849, from medical Latin embryonem (see embryo) + -ic. Figurative use is from 1856. embryonic em·bry·on·ic (ěm’brē-ŏn’ĭk) or em·bry·on·al (ěm’brē-ə-nəl) […]

  • Embryonically

    [em-bree-on-ik] /ˌɛm briˈɒn ɪk/ adjective 1. pertaining to or in the state of an . 2. rudimentary; undeveloped. /ˌɛmbrɪˈɒnɪk/ adjective 1. of or relating to an embryo 2. in an early stage; rudimentary; undeveloped adj. 1849, from medical Latin embryonem (see embryo) + -ic. Figurative use is from 1856. embryonic em·bry·on·ic (ěm’brē-ŏn’ĭk) or em·bry·on·al (ěm’brē-ə-nəl) […]



  • Embryonic area

    embryonic area n. The area of the blastoderm on either side of, and immediately cephalic to, the primitive streak where the component cell layers have become thickened.

  • Embryonic-disk

    noun, Embryology. 1. Also called embryonic shield. in the early embryo of mammals, the flattened inner cell mass that arises at the end of the blastocyst stage and from which the embryo begins to differentiate. 2. the blastodisk of yolky eggs. embryonic disk n.



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