vitelline membrane
1vitelline membrane — n a membrane enclosing the egg proper and corresponding to the plasma membrane of an ordinary cell * * * the cytoplasmic, noncellular membrane surrounding an oocyte …
2Vitelline membrane — Infobox Embryology Name = Vitelline membrane Latin = m. vitellina GraySubject = 5 GrayPage = 45 Caption = Caption2 = System = CarnegieStage = Days = Precursor = GivesRiseTo = MeshName = Vitelline+membrane MeshNumber = A16.631.886 DorlandsPre = m… …
3vitelline membrane — noun Date: 1845 a membrane enclosing an egg that comprises the zona pellucida in mammals and that upon fertilization splits off from the surface of the egg forming a fertilization membrane in many invertebrates and amphibians and in some fish …
4vitelline membrane — a membrane, product of the ooplasmic surface which adheres closely to the outer boundary of the ooplasm, but as fertilization separates from the surface as a distinct membrane …
5vitelline membrane — noun : a membrane enclosing the egg proper and corresponding to the cell wall of an ordinary cell; especially : a membrane separated from the surface of the egg in many invertebrates immediately the egg is fertilized, thus preventing other… …
6vitelline membrane — A membrane enclosing eggs of invertebrates located within an egg shell …
7vitelline membrane — The membrane, usually of protein fibres, immediately outside the plasmalemma of the ovum and the earlier stages of the developing embryo. Its structure and composition vary in differing animal groups …
8vitelline membrane — the membrane surrounding the egg yolk. [1835 45] * * * …
9vitelline membrane — noun Embryology a transparent membrane surrounding and secreted by the fertilized ovum, preventing the entry of further spermatozoa …
10vitelline membrane — vitel′line mem′brane n. cbl the membrane surrounding an egg yolk • Etymology: 1835–45 …
