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Meaning of MIOSIS

Pronunciation:  mI'owsis

WordNet Dictionary
  1. [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
  2. [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)

MIOSIS is a 6 letter word that starts with M.


 Synonyms: light reflex, meiosis, myosis, pupillary reflex, reduction division
 See Also: anaphase, cell division, cellular division, inborn reflex, innate reflex, instinctive reflex, karyokinesis, metaphase, nondisjunction, physiological reaction, prophase, reflex, segregation, telophase, unconditioned reflex



Medical Dictionary
 Definition: constriction of the pupil.