Centrosphere Cen"tro*sphere, n. [Gr. ? centre + sphere.] 1. (Geol.) The nucleus or central part of the earth, forming most of its mass; -- disting. from {lithosphere}, {hydrosphere}, etc. [Webster 1913 Suppl.]

2. (Biol.) The central mass of an aster from which the rays extend and within which the centrosome lies when present; the attraction sphere. The name has been used both as excluding and including the centrosome, and also to designate a modified mass of protoplasm about a centrosome whether aster rays are developed or not. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • centrosphère — [ sɑ̃trɔsfɛr ] n. f. • 1904; de centro et sphère ♦ Biol. Partie du centrosome entourant le centriole. centrosphère [sɑ̃tʀɔsfɛʀ] n. f. ÉTYM. 1904; empr. à l all. Centrosphäre, Strasburger, 1893, de centro (→ Centro ), et Sphäre (→ Sphère). ❖ …   Encyclopédie Universelle

  • centrosphere — centrosphere. См. центросфера. (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.

  • centrosphere — [sen΄trō sfir΄] n. 1. Biol. the portion of the centrosome surrounding the centriole; center of an aster 2. Geol. the inner part of the earth, beneath the lithosphere and consisting of the mantle and core …   English World dictionary

  • centrosphere — see centrosome …   Dictionary of invertebrate zoology

  • centrosphere — Alternative (rare) name for centrosome …   Dictionary of molecular biology

  • centrosphere — /sen treuh sfear /, n. 1. Cell Biol. the protoplasm around a centrosome; the central portion of an aster, containing the centrosome. 2. Geol. the central or interior portion of the earth. [1895 1900; CENTRO + SPHERE] * * * …   Universalium

  • centrosphere — noun a) The cytoplasm surrounding the centriole of a centrosome. b) barysphere …   Wiktionary

  • centrosphere — The specialized, often gelated cytoplasm of the cytocentrum. Contains the centrioles from which the astral fibers (microtubules) extend during mitosis. SYN: astrocele, statosphere. [centro + G. sphaira, a ball, sphere] * * * cen·tro·sphere sen… …   Medical dictionary

  • centrosphere — n. area near the cell nucleus (Biology) …   English contemporary dictionary

  • centrosphere — cen·tro·sphere …   English syllables

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