- Biochemistry. any of a class of unsaturated fatty acids that are involved in the contraction of smooth muscle, the control of inflammation and body temperature, and many other physiological functions.
- Pharmacology. any commercial preparation of this substance.
Origin of prostaglandin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of a group of potent hormone-like compounds composed of essential fatty acids and found in all mammalian tissues, esp human semen. Prostaglandins stimulate the muscles of the uterus and affect the blood vessels; they are used to induce abortion or birth
C20: from prosta (te) gland + -in; it was originally believed to be secreted by the prostate gland
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for prostaglandin
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of a group of hormonelike substances produced in various tissues that are derived from amino acids and mediate a range of physiological functions, such as metabolism and nerve transmission.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Any of a group of substances that are derived from fatty acids and have a wide range of effects in the body. Prostaglandins influence the contraction of the muscles lining many internal organs and can lower or raise blood pressure.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.