eryth·​ro·​poi·​e·​tin | \ i-ˌrith-rō-ˈpȯi-ə-tən How to pronounce erythropoietin (audio) \

Definition of erythropoietin

: a glycoprotein hormone formed especially in the kidney and stimulating red blood cell formation

Examples of erythropoietin in a Sentence

Recent Examples on the Web People with chronic kidney disease, for example, can't make erythropoietin, and therefore have hypoxic cells, Semenza said. Jennifer Leman, Popular Mechanics, "Breathing Is Simple. The Way Your Cells Process Oxygen Isn't.," 8 Oct. 2019 The hormone that triggers erythropoiesis is called erythropoietin, or EPO. The Economist, "Batteries, exoplanets, cosmology and cell biology win Nobel laurels," 12 Oct. 2019 Much of that regulation, previous research established, is controlled by a hormone called erythropoietin (EPO), which boosts the concentration of oxygen-carrying red blood cells. Jason Daley, Smithsonian, "Nobel Prize in Medicine Awarded to Scientists Who Revealed How Cells Respond to Different Oxygen Levels," 7 Oct. 2019 When the body detects that less oxygen is present, the kidneys release a hormone called erythropoietin, or EPO, which tells the body to make more red blood cells to carry more oxygen around. Katherine Ellen Foley, Quartz, "Winners of the 2019 Nobel Prize in medicine figured out how our cells adapt to oxygen levels," 7 Oct. 2019 For decades, scientists were aware that in low-oxygen conditions, the kidneys secrete a hormone called EPO (erythropoietin), which boosts the production of red blood cells in an effort to bring oxygen levels back to normal. Quanta Magazine, "Nobel Prize Awarded for Discoveries on How Cells Adapt to Oxygen," 7 Oct. 2019 Hypoxia was known to trigger a rise in the hormone erythropoietin (EPO), which is involved in producing red blood cells, but the prizewinning scientists revealed the mechanism for how this process works. Tanya Lewis, Scientific American, "Discovery of Molecular Switch for How Cells Use Oxygen Wins 2019 Nobel Prize in Medicine," 7 Oct. 2019 The fundamental physiology work has led a better understanding of how much than 300 hundred genes in the body are regulated, including the one for the hormone erythropoietin (EPO), which regulates production of blood cells. Science | AAAS, "Medicine Nobel honors work on cellular system to sense oxygen levels," 7 Oct. 2019 Other researchers had identified the hormone erythropoietin (the EPO made famous by many athletic doping scandals), which stimulates the production of red blood cells. John Timmer, Ars Technica, "Our bodies’ built-in oxygen sensing gets three a Nobel in Medicine," 7 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'erythropoietin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of erythropoietin

1948, in the meaning defined above

Keep scrolling for more

Learn More about erythropoietin

Time Traveler for erythropoietin

Time Traveler

The first known use of erythropoietin was in 1948

See more words from the same year

Statistics for erythropoietin

Cite this Entry

“Erythropoietin.” Dictionary, Merriam-Webster, Accessed 7 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for erythropoietin


eryth·​ro·​poi·​e·​tin | \ -ˈpȯi-ət-ən How to pronounce erythropoietin (audio) \

Medical Definition of erythropoietin

: a hormonal substance that is formed especially in the kidney and stimulates red blood cell formation abbreviation EPO — see epogen

More from Merriam-Webster on erythropoietin Encyclopedia article about erythropoietin

Comments on erythropoietin

What made you want to look up erythropoietin? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Star Wars Words Quiz

  • cu jedi training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!