- n 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
- n miosis (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)
Century Dictionary and Cyclopedia
- n miosis Diminution. Specifically — In rhetoric: A figure by which a thing is represented as less than it really is, as in belittling an opponent's statement, affecting to scorn an accusation, etc. Understatement so as to intensify; especially, expression by negation of the opposite; litotes
- n miosis In cytology, the reduction-process in organisms, including mitapsis (or synapsis) and the subsequent heterotypic and homotypic divisions. This process results in reducing to one half the number of chromosomes in the nuclei. Farmer and Moore. Improperly spelled maiosis.
- n miosis Used by error or substitution for myosis.
Chambers's Twentieth Century Dictionary
- n Miosis mī-ō′sis diminution: litotes.