Definition of sinoatrial
: of, involving, or being the sinus node <sinoatrial block>
Origin of sinoatrial
New Latin sinus + atrium
First Known Use: 1913
Medical Definition of sinoatrial
: of, involving, or being the sinoatrial node <sinoatrial block>
Learn More about sinoatrial
Medical Dictionary: Definition of "sinoatrial"
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