English noun: miosis |
1. | miosis (process) (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) |
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| Synonyms | meiosis, reduction division |
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| Broader (hypernym) | cell division, cellular division |
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| Narrower (hyponym) | nondisjunction |
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| Part holonym | anaphase, cytokinesis, karyokinesis, metaphase, prophase, segregation, telophase |
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| Domain category | genetic science, genetics |
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2. | miosis (act) reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller |
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| Synonyms | light reflex, myosis, pupillary reflex |
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| Broader (hypernym) | inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex |
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