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(ĕm″brē-ō-kăr′dē-ă) [″ + kardia, heart] Heart action in which the first and second sounds are equal and resemble the fetal heart sounds; a sign of cardiac distress.


(ĕm″brē-ō-sī′dăl) [Gr. embryon, something that swells in the body, + L. cida, killer] Pert. to anything that kills an embryo.


(ĕm″brē-ŏk′tŏ-nē) [″ + kteinein, to kill] Destruction of the fetus in utero, as when delivery is impossible or during abortion. SEE: craniotomy.

embryogenetic, embryogenic

(ĕm″brē-ō-jĕ-nĕt′ĭk, ĕm″brē-ō-jĕn′ĭk) [″ + gennan, to produce] Giving rise to an embryo.


(em″brē-oj′ĕ-nē) The growth and development of an embryo. embryogenic (em″brē-ŏ-jen′ik), adj.


(ĕm″brē-ŏl′ŏ-jē) [″ + logos, word, reason] The science that deals with the origin and development of an organism in the womb.


(ĕm-brē-ō′mă) [″ + oma, tumor] A tumor, such as Wilms’ tumor of the kidney, neuroblastoma, or teratomas, consisting of derivatives of the embryonic germ layers but lacking in organization.


(em-brī′ŏ-năl) [embryo + -al] Embryonic (1).


(em′brē-ŏ-nāt″ĕd) Fertilized.

embryonated chicken eggs

Fertilized chicken eggs, in which vaccines for diseases such as influenza are produced.


(em″brē-on′ik) [embryo + -ic] 1. Pert. to or in the condition of an embryo. SYN: embryonal. 2. In human gestation, pert. to the stage of prenatal development between the fourth day after fertilization and the end of the eighth week.


(ĕm″brē-ŏp′ă-thē) [″ + pathos, disease, suffering] Any acquired or genetic disease of a developing embryo.


(ĕm″brē-ō-plăs′tĭk) [″ + plassein, to form] Having a part in the formation of an embryo; said of cells.


(ĕm″brē-ŏs′kŏ-pē) Direct visualization of the fetus or embryo in the uterus by insertion of the light source and image-detecting portion of a fetoscope into the amniotic cavity through a small incision in the abdominal wall. This technique permits visualization and photography, surgical correction of certain types of congenital defects, and collection of amniotic fluid specimens for analysis of chemical and cellular materials. SEE: illus.






(ĕm″brē-ŏt′ō-mē) Dissection of a fetus to aid delivery.


(ĕm″brē-ō-tŏks′ŏn) [″ + toxon, bow] Congenital marginal opacity of the cornea. SYN: arcus juvenilis.

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