| 单词 | miosis |
| 释义 | miosis (once / 3939771 pages) 1n 2n WORD FAMILY miosis 1 n (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants) 2Syn|Hypo|Hyper meiosis, reduction division nondisjunction meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells cell division, cellular division the process in reproduction and growth by which a cell divides to form daughter cells n reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller Syn|Hyper light reflex, myosis, pupillary reflex inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex an automatic instinctive unlearned reaction to a stimulus |
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