Definition of miosis

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  • miosis is a valid Scrabble US word with a point value of 8
  • miosis is a valid Scrabble UK word with a point value of 8
  • miosis is a valid Words with friends word with a point value of 9

Definition of miosis

  • reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller (noun)

    Synonyms

    1. light reflex
    2. myosis
    3. pupillary reflex
  • (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) (noun)

    Synonyms

    1. meiosis
    2. reduction division

See definition of miosis in Merriam Webster