mitosis

n. (pl. mitoses) the type of division of a cell nucleus that produces two identical daughter nuclei, each possessing the same number and type of chromosomes as the parent nucleus. It is usually accompanied by division of the cytoplasm, leading to the formation of two identical daughter cells. Compare meiosis. —mitotic adj.

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Psychology term of the day

April 30th 2024

arousal jag

an increase of arouses followed by a more or less sudden decrease, often accompanied by laughter as a release of tension. The abrupt fall from elevated levels of arousal to a lower, more appropriate level is thought to produce a pleasurable response. Common experiences that can produce an arousal jag include a roller-coaster ride or watching a scary movie. [introduced in 1970 by Daniel E. Berlyne]