• synonyms


[ih-rith-roh-poi-i-tn, -poi-eet-n]
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  1. Biochemistry. a hormone that stimulates production of red blood cells and hemoglobin in the bone marrow, released in response to low levels of oxygen in the tissues.
  2. a synthetic form of this hormone, used as a performance-enhancing drug.

Origin of erythropoietin

First recorded in 1945–50; erythropoiet(ic) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for erythropoietin


  1. a hormone, secreted by the kidney in response to low levels of oxygen in the tissues, that increases the rate of erythropoiesis. It has been used as a performance-enhancing drug for athletes and racehorsesAbbreviation: EPO
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

erythropoietin in Medicine


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  1. A glycoprotein hormone that stimulates the production of red blood cells by bone marrow.
  2. Epoetin alfa.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

erythropoietin in Science


  1. A glycoprotein hormone, secreted mostly by the kidneys in adults and the liver in children, that stimulates stem cells in the bone marrow to produce red blood cells.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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