sinus node

sinus node

noun

Definition of SINUS NODE

: a small mass of tissue that is embedded in the musculature of the right atrium of higher vertebrates and that originates the impulses stimulating the heartbeat

First Known Use of SINUS NODE

1937

Rhymes with SINUS NODE

à la mode, antipode, carbo-load, discommode, down the road, eigenmode, electrode, episode, frontage road, front-end load, hit the road, impastoed, incommode, internode, Kozhikode, microcode, mother lode, Nesselrode, object code, palinode, penal code, pigeon-toed, service road, trematode, wagonload