A mass of chromatin often found in the interphase cell nucleus representing a more condensed zone of chromatin filaments. SYN: chromatin nucleolus, chromocenter, false nucleolus, net knot. [karyo- + G. soma, body]
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kar·yo·some 'kar-ē-ə-.sōm n a mass of chromatin in a cell nucleus that resembles a nucleolus
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n.
the dense mass of chromatin found in the cell nucleus, which is composed mainly of chromosomes.
Medical dictionary. 2011.