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AMITOSIS - Definiția din dicționar

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‖Am`i*to"sis (?), n. [NL. See A- not, and Mitosis.] (Biol.) Cell division in which there is first a simple cleavage of the nucleus without change in its structure (such as the formation of chromosomes), followed by the division of the cytoplasm; direct cell division; -- opposed to mitosis. It is not the usual mode of division, and is believed by many to occur chiefly in highly specialized cells which are incapable of long-continued multiplication, in transitory structures, and in those in early stages of degeneration.
[Webster 1913 Suppl.]