blastodisc
noun Date: circa 1881 the embryo-forming portion of an egg with discoidal cleavage usually appearing as a small disc on the upper surface of the yolk mass — see egg illustration

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • blastodisc — lastodisc n. a disc shaped layer of cells on the surface of the yolk mass of an egg (such as that of a bird) which develops to form the embryo. Syn: germinal disc, germinal area. [WordNet 1.5 +PJC] …   The Collaborative International Dictionary of English

  • blastodisc — blastodisc. См. бластодиск. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • blastodisc — the early embryo of Teleostei comprising a disc or cap of cells on the yolk …   Dictionary of ichthyology

  • blastodisc — blas·to·disc or blas·to·disk blas tə .disk n the embryo forming portion of an egg with discoidal cleavage usu. appearing as a small disc on the upper surface of the yolk mass * * * blas·to·disc (blasґto disk) [blasto + Gr. diskos disk] the convex …   Medical dictionary

  • blastodisc — blas·to·disc …   English syllables

  • blastodisc — /ˈblæstədɪsk/ (say blastuhdisk) noun the small disc of protoplasm, containing the dividing cells, which appears on the surface of the yolk mass in very heavily yolked eggs, as of birds and reptiles …   Australian English dictionary

  • blastodisc — noun a layer of cells on the inside of the blastula • Syn: ↑blastoderm, ↑germinal disc, ↑germinal area • Derivationally related forms: ↑blastodermic (for: ↑blastoderm), ↑blastodermatic …   Useful english dictionary

  • бластодиск — blastodisc бластодиск. Cкопление цитоплазмы на анимальном полюсе яиц, характеризующихся дискоидальным типом дробления. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • germinal disc — noun a layer of cells on the inside of the blastula • Syn: ↑blastoderm, ↑blastodisc, ↑germinal area • Derivationally related forms: ↑blastodermic (for: ↑blastoderm), ↑blastodermatic …   Useful english dictionary

  • Blastoderm — Blas to*derm, n. [Gr. blasto s sprout + E. derm.] (Embryology) the early stage of an embryo after the first cleavages of the ovum; also, the layer of cells of which the early embryo is composed; specifically: (a) the early embryo developing from… …   The Collaborative International Dictionary of English

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