Email this page to a friend

MIOSIS

Definition:

[noun] (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)
Synonyms: meiosis, reduction division
[noun] reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
Synonyms: light reflex, pupillary reflex, myosis