- The pressure exerted by the blood against the walls of the arteries and veins; it varies during the heartbeat cycle, and according to a person's age, health and physical condition.
- the great majority of people who have serious conditions from high blood pressure suffer debilitating illness
- 1960, P[elham] G[renville] Wodehouse, “XVII, XVIII, and XIX”, in Jeeves in the Offing, London: Herbert Jenkins, OCLC 1227855:
- She threw her head back and inflated the lungs. “UPJOHN!” she boomed, rather like someone calling the cattle home across the sands of Dee, and I issued a kindly word of warning. “Watch that blood pressure, old ancestor.” “Never you mind my blood pressure. You let it alone, and it'll leave you alone. UPJOHN!”
- The nurse spent all day taking blood pressures at the hospital.
pressure exerted by the blood against the walls of the arteries and veins