‖Kar′y‐o‐ste‐no″sis (?), n. [NL., fr. Gr. κάρυον a nut, kernel + � a being straitened.] (Biol.) Direct cell division (in which there is first a simple division of the nucleus, without any changes in its structure, followed by division of the protoplasm of the cell); — in opposition to karyokinesis.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.