WordNet 3.0 Copyright © 2006 by Princeton University.
- 1. meiosis, miosis, reduction division, cell division, cellular division
- usage: (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)
- 2. light reflex, pupillary reflex, miosis, myosis, reflex, reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction
- usage: reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
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See also: miosis (Dictionary)