Also found in: Medical.
Having three waves or elevations to one beat of the pulse.
[From Greek trikrotos, having a triple beat : tri-, three; see trei- in Indo-European roots + krotein, to beat.]
tri′cro·tism (trī′krə-tĭz′əm) n.
(Physiology) physiol (of the pulse) having a tracing characterized by three elevations with each beat
[C19: from Greek trikrotos having three beats, from tri- + krotos a beat]