Blood Pressure: A measurement of how open your blood vessels are. Low numbers mean that your heart doesn’t have to work very hard to pump the blood through your blood vessels.

 

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Blood Pressure: A measurement of how open your blood vessels are. Low numbers mean that your heart doesn’t have to work very hard to pump the blood through your blood vessels.

Systolic Pressure: The peak blood pressure when ventricles contract.

Acupressure: Acupressure is an ancient healing art that uses the fingers to press key points on the surface of the skin to stimulate the body’s natural self-curative abilities. When these points are pres . . . View Full Definition

Pressure Tendency: The pressure characteristic and amount of pressure change during a specified time period, usually the three hour period preceding the observation.

Pressure-Treated Wood: Lumber that has been saturated with a preservative.

Pressureless Ball: A special type of tennis ball that does not have a core of pressurized air as standard balls do but rather has a core made of solid rubber, or a core filled tightly with micro-particles. Qua . . . View Full Definition

Pressured Speech: Speech that is increased in amount, accelerated, and difficult or impossible to interrupt. Usually it is also loud and emphatic. Frequently the person talks without any social stimulation an . . . View Full Definition

Pressure Transducer: Outputs electrical signal proportional to pressure.

Pressure Relief Valve: A valve used on hot water heating appliances to help keep the pressure in the heated tank or boiler from getting too high by allowing the relief of pressure from the valve.

Pressure Gauge: A water level gauge that is operated by the change in pressure at the bottom of a body of water due to the rise and fall of the water level. See gas purged pressure gauge.