an·​gio·​ten·​sin | \ ˌan-jē-ō-ˈten(t)-sən \

Definition of angiotensin

: either of two forms of a kinin of which one has marked vasoconstrictive action also : a synthetic amide derivative of the physiologically active form used to treat some forms of hypotension

Examples of angiotensin in a Sentence

Recent Examples on the Web

An example is reflected in the class of medicines that regulate the formation of angiotensin, a protein involved in the control of blood pressure. Mark C. Fishman, STAT, "The miracle of medicines," 7 May 2018 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

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

First Known Use of angiotensin

1958, in the meaning defined above

History and Etymology for angiotensin

angi- + hypertension + -in

Keep scrolling for more

Learn More about angiotensin

Share angiotensin

Statistics for angiotensin

Look-up Popularity

Time Traveler for angiotensin

The first known use of angiotensin was in 1958

See more words from the same year

Keep scrolling for more

More Definitions for angiotensin


an·​gio·​ten·​sin | \ ˌan-jē-ō-ˈten(t)-sən \

Medical Definition of angiotensin

1 : either of two forms of a kinin of which one has marked physiological activity and the other is its physiologically inactive precursor especially : angiotensin ii
2 : a synthetic amide derivative of angiotensin II used to treat some forms of hypotension

More from Merriam-Webster on angiotensin Encyclopedia article about angiotensin

Comments on angiotensin

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


to gather or build up little by little

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


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


Love words? Need even more definitions?

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