MIOSIS

meiosis, miosis, reduction division

(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)

Source: WordNet® 3.1

Etymology

Noun

miosis (countable and uncountable, plural mioses)

Contraction of the pupil of the eye.

Antonyms

• mydriasis

Source: Wiktionary