a. [ Gr. &unr_; = &unr_; to knock, beat. ] (Physiol.)
a. (Physiol.) Excessive dicrotic;
a. (Physiol.) A term applied to the pulse wave sometimes seen in a pulse curve or sphygmogram, between the apex of the curve and the dicrotic wave. [ 1913 Webster ]
The predicrotic or tidal wave is best marked in a hard pulse,