Also found in: Medical.


a.1.(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.
The predicrotic or tidal wave is best marked in a hard pulse, i. e., where the blood pressure is high.
- Landois & Stirling.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.