blastocyst

  • 1Blastocyst — Blas to*cyst, n. [Gr. blasto s sprout + E. cyst.] (Biol.) The germinal vesicle. [1913 Webster] …

    The Collaborative International Dictionary of English

  • 2blastocyst — (n.) 1876, from BLASTO (Cf. blasto ) + CYST (Cf. cyst) …

    Etymology dictionary

  • 3blastocyst — [blas′tōsist΄, blas′təsist΄] n. [ BLASTO + CYST] BLASTULA …

    English World dictionary

  • 4Blastocyst — Infobox Embryology Name = Blastocyte Latin = GraySubject = GrayPage = Caption = Caption2 = System = CarnegieStage = 3 Days = 5 Precursor = GivesRiseTo = MeshName = Blastocyst MeshNumber = A16.254.085 DorlandsPre = b 14 DorlandsSuf = 12187695 The… …

    Wikipedia

  • 5Blastocyst — A stage in the early embryonic development of mammals in which there is a hollow sphere with an outer layer of cells and inside the hollow sphere, there is a cluster of cells called the inner cell mass. If development continues, the outer layer… …

    Medical dictionary

  • 6blastocyst — n. an early stage of embryonic development that consists of a hollow ball of cells with a localized thickening (the inner cell mass) that will develop into the actual embryo; the remainder of the blastocyst is composed of trophoblast . At first… …

    The new mediacal dictionary

  • 7blastocyst — In mammalian development, cleavage produces a thin walled hollow sphere, whose wall is the trophoblast, with the embryo proper being represented by a mass of cells at one side. The blastocyst is formed before implantation and is equivalent to the …

    Dictionary of molecular biology

  • 8blastocyst — /blas teuh sist/, n. Embryol. the blastula of the mammalian embryo, consisting of an inner cell mass, a cavity, and an outer layer, the trophoblast. [1885 90; BLASTO + CYST] * * * ▪ embryo phase       a distinctive stage of a mammalian embryo. It …

    Universalium

  • 9blastocyst cavity — blastocystic cavity the fluid filled cavity developing in the morula as it becomes a blastocyst …

    Medical dictionary

  • 10blastocyst — noun Date: circa 1881 the modified blastula of a placental mammal having an outer layer composed of the trophoblast …

    New Collegiate Dictionary