miosis

Noun miosis has 2 senses

• miosis(n = noun.process) meiosis, reduction division - (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);
has parts: anaphase, cytokinesis, karyokinesis, metaphase, prophase, segregation, telophase
is a kind of cell division, cellular division
has particulars: nondisjunction

• miosis(n = noun.act) light reflex, myosis, pupillary reflex - reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller;
is a kind of inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex
Derived form adjective miotic₁