| embryo | <embryology, gynaecology> In animals, those derivatives of the fertilized ovum that eventually become the offspring, during their period of most rapid development, i.e., after the long axis appears until all major structures are represented. In man, the developing organism is an embryo from about two weeks after fertilization to the end of seventh or eighth week. Origin: Gr. Embryon (18 Nov 1997) |
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| embryo resorption | Death and resorption of the embryo that takes place at any developmental stage after ovum implantation and before the completion of organogenesis. does not include foetal resorption. (12 Dec 1998) |
| embryo sac | <botany> See Embryonic. Source: Websters Dictionary (01 Mar 1998) |
| embryo technology | Refers to the manipulation of mammalian embryos, for example, cloning, embryo splitting, in vitro fertilization, artificial insemination, gamete and embryo storage. (14 Nov 1997) |
| embryo transfer | The placement of a laboratory-fertilized egg into the uterus. (09 Oct 1997) |
| embryo, nonmammalian | The embryo of species other than mammals. For the chicken, use the specific chick embryo. (12 Dec 1998) |
| embryoblast | The cells at the embryonic pole of the blastocyst concerned with formation of the body of the embryo per se. Synonym: inner cell mass. Origin: embryo-+ G. Blastos, germ (05 Mar 2000) |
| embryocardia | A condition in which the cadence of the heart sounds resembles that of the foetus, the first and second sounds becoming alike and evenly spaced; a sign of serious myocardial disease. Synonym: pendulum rhythm, tic-tac rhythm, tic-tac sounds. Origin: embryo-+ G. Kardia, heart (05 Mar 2000) |
| embryogenesis | The processes leading to the development of an embryo from egg to completion of the embryonic stage. (18 Nov 1997) |
| embryogenic | <biology> Pertaining to the development of an embryo. Source: Websters Dictionary (01 Mar 1998) |
| embryogeny | <biology> The production and development of an embryo. Origin: Gr. An embryo + root of to produce: cf. F. Embryogenie. Source: Websters Dictionary (01 Mar 1998) |
| embryogony | <biology> The formation of an embryo. Origin: Gr. An embryo + generation. Source: Websters Dictionary (01 Mar 1998) |
| embryography | <biology> The general description of embryos. Origin: Gr. An embryo. Source: Websters Dictionary (01 Mar 1998) |
| embryoid | Resembling an embryo or a foetus. Synonym: embryoid, embryoniform. Origin: embryo-+ G. Eidos, appearance (05 Mar 2000) |
| embryological | <biology> Of or pertaining to embryology. Source: Websters Dictionary (01 Mar 1998) |
| maxillary process of embryo | The part of the first pharyngeal arch that lies cranial to the stomodeum and then develops into the upper jaw. (05 Mar 2000) |
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| chicken embryo lethal orphan virus | <virology> A virus with characteristics of adenovirus, and similar to quail bronchitis virus. Synonym: chicken embryo lethal orphan virus. (05 Mar 2000) |
| pre-embryo | <embryology> A fertilized egg in the early stage of development prior to cell division. (31 Dec 1997) |
| presomite embryo | An embryo prior to the appearance of the first pair of somites, about 20 to 21 days after fertilization in humans. (05 Mar 2000) |
| previllous embryo | The embryo of a placental mammal prior to the formation of chorionic villi. (05 Mar 2000) |
| heterogametic embryo | A male embryo with XY karyotype. (05 Mar 2000) |
| hexacanth embryo | The embryo of tapeworms of the subclass Cestoda, such as Taenia saginata, characterised by three pairs of hooks used for penetration through the gut of an intermediate host. Synonym: oncosphere embryo. (05 Mar 2000) |
| homogametic embryo | A female embryo with XX karyotype. (05 Mar 2000) |
| human embryo lung cell | <cell culture> Diploid, untransformed cells from the lungs of human embryos which are used to make vaccines against certain viruses (such as rabies). (09 Oct 1997) |
| duck embryo origin vaccine | See: rabies vaccine. (05 Mar 2000) |
| oncosphere embryo | The embryo of tapeworms of the subclass Cestoda, such as Taenia saginata, characterised by three pairs of hooks used for penetration through the gut of an intermediate host. Synonym: oncosphere embryo. (05 Mar 2000) |