| 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) |
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| 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) |
| embryologist | A specialist in embryo development. (09 Oct 1997) |
| embryology | <study> The study of the embryo and its development from a one-celled zygote (fertilized ovum) to the establishment of form and shape (at which point, if it is an animal, it becomes a foetus). A subfield of developmental biology. (09 Oct 1997) |
| embryoma | Embryonic tumour, a neoplasm, usually malignant, which arises during intrauterine or early postnatal development from an organ rudiment or immature tissue; it forms immature structures characteristic of the part from which it arises, and may form other tissues as well. The term includes neuroblastoma and Wilms' tumour, and is also used to include certain neoplasms presenting in later life, this usage being based on the belief that such tumours arise from embryonic rests. See: teratoma. Synonym: embryoma. (05 Mar 2000) |
| embryoma of the kidney | <oncology, tumour> Wilm's tumour or nephroblastoma, is a cancerous tumour of the kidney in children. Wilm's is the most common tumour of the kidney and the most common intra-abdominal tumour in children. The exact cause is unknown, but probably develops in foetal tissue due to an underlying genetic factor. Like retinoblastoma, both sporadic and inherited forms occur. Believed to be caused by development of homozygosity for a deletion of the tip of the short arm of chromosome 11, which is presumed to contain a tumour suppressor gene. (07 Oct 1997) Previous: willow wattle, willow-weed, willow-wort, wills, Wilms, Max, wilms tumourNext: Wilms' tumour, Wilson block, Wilson, Clifford, wilson diseaseembryoma of the kidney -->Wilms' tumour A malignant renal tumour of young children, composed of small spindle cells and various other types of tissue, including tubules and, in some cases, structures resembling foetal glomeruli, and striated muscle and cartilage. Often inherited as an autosomal dominant trait . Synonym: adenomyosarcoma, embryoma of the kidney, nephroblastoma. (05 Mar 2000) |
| embryomorphous | 1. Relating to the formation and structure of the embryo. 2. Applied to structures or tissues in the body similar to those in the embryo, or embryonal rests. Origin: embryo-+ G. Morphe, shape (05 Mar 2000) |
| embryonal | <biology> Pertaining to an embryo, or the initial state of any organ; embryonic. Source: Websters Dictionary (01 Mar 1998) |