renin

noun
re·​nin | \ ˈrē-nən How to pronounce renin (audio) , ˈre-\

Definition of renin

: a proteolytic enzyme of the kidney that plays a major role in the release of angiotensin

Examples of renin in a Sentence

Recent Examples on the Web

One of the ways the body exerts this control is with a hormone called renin, which makes blood vessels narrower when the pressure needs to be kept up. Quanta Magazine, "How Bacteria Help Regulate Blood Pressure," 30 Nov. 2017 Olfr78, Pluznick and her colleagues discovered, helps drive the production of renin. Quanta Magazine, "How Bacteria Help Regulate Blood Pressure," 30 Nov. 2017 Over the next 15 years, investigations by several groups showed that renin itself did not affect blood vessels, but rather activated a blood protein called angiotensinogen, making angiotensin. Mark C. Fishman, STAT, "The miracle of medicines," 7 May 2018 Thirty-six years later, poor blood flow to the kidneys was linked to high blood pressure and release of the protein renin. Mark C. Fishman, STAT, "The miracle of medicines," 7 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'renin.' 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 renin

1903, in the meaning defined above

History and Etymology for renin

International Scientific Vocabulary, from Latin renes

Keep scrolling for more

Learn More about renin

Dictionary Entries near renin

renilla

renillid

Renillidae

renin

reniportal

renitency

renitent

Statistics for renin

Last Updated

25 Jul 2019

Look-up Popularity

Time Traveler for renin

The first known use of renin was in 1903

See more words from the same year

Keep scrolling for more

More Definitions for renin

renin

noun
re·​nin | \ ˈrē-nən also ˈren-ən\

Medical Definition of renin

: a proteolytic enzyme of the blood that is produced and secreted by the juxtaglomerular cells of the kidney and hydrolyzes angiotensinogen to angiotensin I

More from Merriam-Webster on renin

Britannica.com: Encyclopedia article about renin

Comments on renin

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

WORD OF THE DAY

a usually brief trip or an expedition

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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