Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

angiotensin II

play
noun \-ˈtü\

Medical Definition of angiotensin II

  1. :  a protein with vasoconstrictive activity that increases blood pressure, stimulates the release of aldosterone, is composed of a chain of eight amino acid residues, and is the physiologically active form of angiotensin <Angiotensin II can cause vasoconstriction, aldosterone biosynthesis, prostaglandin formation or angiogenesis.—Nicola Glorioso et al., Science, 26 Sept. l986> <Captopril, the first approved member of this new class of antihypertensive agents, acts by inhibiting the conversion of angiotensin I to angiotensin II.—Scientific American Medicine, September 1982>




Seen and Heard

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

WORD OF THE DAY

the Celtic May Day festival

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

angry oily maudlin prompt
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