The Collaborative International Dictionary
Tricrotism
Tricrotism \Tri"cro*tism\, n. (Physiol.) That condition of the arterial pulse in which there is a triple beat. The pulse curve obtained in the sphygmographic tracing characteristic of tricrotism shows two secondary crests in addition to the primary.
Wiktionary
tricrotism
n. (context biology English) The condition of the arterial pulse in which there is a triple beat, so that the pulse curve obtained in a sphygmographic tracing shows two secondary crests in addition to the primary one.