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oocyteenUK
o·o·cyte O0084000 (ō′ə-sīt′)n. A diploid cell from which an egg or ovum develops by meiosis. A primary oocyte divides to produce a polar body and a secondary oocyte, which divides again to produce the ovum and another polar body.oocyte (ˈəʊəˌsaɪt) n (Biology) an immature female germ cell that gives rise to an ovum after two meiotic divisionso•o•cyte (ˈoʊ əˌsaɪt)
n. an immature egg cell of the animal ovary: in humans, one oocyte matures during the menstrual cycle while several others partially mature and disintegrate. [1890–95] oocyteAn immature ovum (egg).Thesaurus| Noun | 1. | oocyte - a female gametocyte that develops into an ovum after two meiotic divisionsgametocyte - an immature animal or plant cell that develops into a gamete by meiosis |
Translations
oocyteenUK
oocyte[′ō·ə‚sīt] (histology) An egg before the completion of maturation. oocyteenUK
oocyte [o´o-sīt] an immature ovum; it is derived from an oogonium, and is called a primary oocyte prior to completion of the first maturation division, and a secondary oocyte between the first and second maturation division.o·o·cyte (ō'ō-sīt), Female gamete or sex cell. When fertilized by a sperm, an oocyte is capable of developing into a new individual of the same species; during matuation, the oocyte, like the sperm, undergoes a halving of its chromosomal complement so that, at its union with the male gamete, the species number of chromosome (46 in humans) is maintained; yolk contained in the oocytes of different animal species varies greatly in amount and distribution, which influences the pattern of the cleavage divisions.
See also: egg, ovum. Synonym(s): ovocyte [G. ōon, egg, + kytos, a hollow (cell)] oocyte (ō′ə-sīt′)n. A diploid cell from which an egg or ovum develops by meiosis. A primary oocyte divides to produce a polar body and a secondary oocyte, which divides again to produce the ovum and another polar body.oocyte Egg Histology The female reproductive or germ cell. Cf Sperm. o·o·cyte (ō'ŏ-sīt) The female sex cell. When fertilized by a sperm, a gamete or zygote is capable of developing into a new individual of the same species; during maturation, the oocyte, like the sperm, undergoes a halving of its chromosomal complement so that, at its union with the male gamete, the species number of chromosomes (46 in humans) is maintained; yolk contained in the oocyte (ova in nonhuman species) varies greatly in amount and distribution, which influences the pattern of the cleavage divisions. In nonhuman females, the term is ovum. [G. ōon, egg, + kytos, a hollow (cell)]oocyte A cell in the OVARY that undergoes MEIOSIS to produce an OVUM. In meiosis the 46 chromosomes are reduced to half the normal number (HAPLOID), so that the full complement can be restored by a haploid contribution from the sperm. Primary oocytes develop in the ovaries of the fetus but only a fraction of these will ever give rise to OVULATION. Secondary oocytes divide to form the mature OVUM but the second maturation division occurs only after the ovum has been fertilized by a sperm.oocyte an early stage in GAMETO GENESIS of female animals, ‘primary’ oocytes being DIPLOID (1) and ‘secondary’ oocytes HAPLOID (1) having undergone the first meiotic division. Human females are born with the primary oocytes already formed, which may increase the risk of NONDISJUNCTION of chromosomes. See also DOWN'S SYNDROME.o·o·cyte (ō'ŏ-sīt) Female gamete or sex cell. [G. ōon, egg, + kytos, a hollow (cell)]oocyteenUK
Related to oocyte: oogenesis, Oocyte donation, OoCyte Retrieval, primary oocyte, Oocyte maturationWords related to oocytenoun a female gametocyte that develops into an ovum after two meiotic divisionsRelated Words |