blood pressure: Meaning and Definition of

blood' pres"sure

Pronunciation: [key]
— Physiol. Physiol.
  1. the pressure of the blood against the inner walls of the blood vessels, varying in different parts of the body during different phases of contraction of the heart and under different conditions of health, exertion, etc. Abbr.: BP Cf. diastolic, systolic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.