• (n.) 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. • (n.) The nucleus o...
Alternative (rare) name for centrosome. ... (18 Nov 1997) ... 
(sen´tro-sfēr) centrosome.
Alternative (rare) name for centrosome.
Cen'tro·sphere noun [ Greek ... centre + sphere .] 1. (Geol.) The nucleus or central part of the earth, forming most of its mass; -- disting. from lithosphere , hydrosphere , etc. 2. (Biol.) The central mass of an aster from which the rays extend and...
Type: Term Pronunciation: sen′trō-sfēr Definitions: 1. The specialized, often gelated cytoplasm of the cytocentrum. Contains the centrioles from which the astral fibers (microtubules) extend during mitosis. Synonyms: astrocele, statosphere
the protoplasm around a centrosome; the central portion of an aster, containing the centrosome. · the central or interior portion of the earth.