Reproductive cell division

• Constriction of the eye's pupil
• (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)
• Excessive contraction of the pupil
• Constriction of the pupil
• Excessive pupil constriction

Wikipedia Word definitions in Wikipedia
Miosis or myosis , /maɪˈoʊ sɪs/, from Ancient Greek μύειν, mūein , "to close the eyes", is a term with various definitions, which generally include constriction of the pupil . The opposite condition, mydriasis , is the dilation of the pupil . Anisocoria ...

Wiktionary Word definitions in Wiktionary
n. Contraction of the pupil of the eye.

WordNet Word definitions in WordNet
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) [syn: meiosis , reduction ...