Denoting the involvement of the entire (isolecithal or moderately telolecithal) ovum in cleavage. [holo- + G. blastos, germ]

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ho·lo·blas·tic .hō-lə-'blas-tik, .häl-ə- adj characterized by cleavage planes that divide the whole egg into distinct and separate though coherent blastomeres <\holoblastic eggs> <\holoblastic cleavage> compare MEROBLASTIC
ho·lo·blas·ti·cal·ly -ti-k(ə-)lē adv

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holo·blas·tic (hōl″o-blasґtik) [holo- + blast- + -ic] 1. dividing completely; undergoing cleavage in which the entire zygote participates; see under cleavage. 2. pertaining to blastic conidiogenesis in which all of the cell wall is used to form the conidium.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Holoblastic — Hol o*blas tic, a. (Biol.) Undergoing complete segmentation; composed entirely of germinal matter, the whole of the yolk undergoing fission; opposed to meroblastic. [1913 Webster] …   The Collaborative International Dictionary of English

  • holoblastic — [häl΄ō blas′tik, hō΄lōblas′tik] adj. [ HOLO + BLAST + IC] Embryology undergoing complete cleavage into daughter cells: said of certain ova with little yolk ( blastomeres): cf. MEROBLASTIC …   English World dictionary

  • holoblastic cleavage — holoblastic cleavage. См. голобластическое дробление. (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.

  • holoblastic — adjective Etymology: International Scientific Vocabulary Date: 1872 characterized by complete cleavage that divides the whole egg into distinct and separate blastomeres compare meroblastic …   New Collegiate Dictionary

  • holoblastic — an egg, the whole of which undergoes cleavage, usually those with little yolk, e.g. Amphioxi, Petromyzontiformes, Acipenseridae, Amiidae, Lepisosteidae …   Dictionary of ichthyology

  • holoblastic — holoblastically, adv. /hol euh blas tik, hoh leuh /, adj. Embryol. (of certain eggs) undergoing total cleavage, resulting in equal blastomeres. Cf. meroblastic. [1870 75; holoblast (HOLO + BLAST) + IC] * * * …   Universalium

  • holoblastic — adjective Cleaving, and separating into separate blastomeres …   Wiktionary

  • holoblastic — adj. of a fertilized egg (Embryology) …   English contemporary dictionary

  • holoblastic — hol·o·blas·tic …   English syllables

  • holoblastic — hol•o•blas•tic [[t]ˌhɒl əˈblæs tɪk, ˌhoʊ lə [/t]] adj. dvl undergoing total cleavage in which the whole egg separates into equal blastomeres • Etymology: 1870–75; holoblast (holo + blast) + ic ho lo•blas′ti•cal•ly, adv …   From formal English to slang

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