SINCE 1828
osmoreceptor
noun
os·mo·re·cep·tor
| \ ˌäz-mō-ri-ˈsep-tər
\
\
Medical Definition of osmoreceptor
: any of a group of cells sensitive to plasma osmolality that are held to exist in the brain and to regulate water balance in the body by controlling thirst and the release of vasopressin
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