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Definition of Osmoreceptor
1. Noun. Sensory end organ that responds to changes in osmotic pressure.
Generic synonyms: End Organ
Medical Definition of Osmoreceptor
1. 1. A receptor in the central nervous system (probably the hypothalamus) that responds to changes in the osmotic pressure of the blood. Origin: G. Osmos, impulsion 2. A receptor that receives olfactory stimuli. Origin: G. Osme, smell Synonym: osmoceptor. (05 Mar 2000)