Definition of “parasympathetic” - English Dictionary

british dictionary

“parasympathetic” in British English

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uk /ˌpær.ə.sɪm.pəˈθet.ɪk/ us /ˌper.ə.sɪm.pəˈθet̬.ɪk/ specialized

relating to the parasympathetic nervous system (= the system that controls functions that cannot be controlled, such as slowing the heart beat and producing tears):

The parasympathetic nervous system opposes the effects of the sympathetic nervous system.

(Definition of “parasympathetic” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)