Medical Definition of Pressor substance
Pressor substance: A substance that elevates the arterial blood pressure. For example, prostacyclin (prostaglandin PGI2) is a potent pressor substance. In medicine, pressor refers to raising the blood pressure. The word comes from the French verb "presser" meaning "to exert pressure" or "to squeeze."Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/9/2016
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