Library / English Dictionary

    SINOATRIAL NODE

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    A specialized bit of heart tissue that controls the heartbeatplay

    Synonyms:

    cardiac pacemaker; pacemaker; SA node; sinoatrial node

    Classified under:

    Nouns denoting body parts

    Hypernyms ("sinoatrial node" is a kind of...):

    cardiac muscle; heart muscle (the muscle tissue of the heart; adapted to continued rhythmic contraction)

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