vasopressin

noun
va·so·pres·sin | \ˌvā-zō-ˈpre-sᵊn \

Definition of vasopressin 

: a polypeptide hormone secreted by the posterior lobe of the pituitary gland or obtained synthetically that increases blood pressure and decreases urine flow

called also antidiuretic hormone

Examples of vasopressin in a Sentence

Recent Examples on the Web

Outside the brain, vasopressin helps regulate blood pressure and fluid retention. Melissa Healy, latimes.com, "Is vasopressin what's lacking in the brains of those with autism?," 3 May 2018 If vasopressin can be strongly linked to autism, it could be used to diagnose the condition earlier, gauge the effectiveness of treatment, or even become a direct drug target. Laura Yan, Popular Mechanics, "Scientists May Have Found a Signpost for Autism in Monkeys," 6 May 2018 But the new study found that vasopressin levels, by contrast, remain stable over long periods. Melissa Healy, latimes.com, "Is vasopressin what's lacking in the brains of those with autism?," 3 May 2018 In his own research with rats and voles, vasopressin promoted some maternal behaviors. Andrea Marks, Scientific American, "Why Some Mice Seem to Make Bad Parents," 1 July 2017 Those dogs that were more aggressive towards other dogs, however, had more vasopressin. National Geographic, "Why Are Some Dogs More Aggressive?," 4 Oct. 2017 Block vasopressin and the male voles shifted back to their more peaceable selves. National Geographic, "Why Are Some Dogs More Aggressive?," 4 Oct. 2017 Further experiments revealed vasopressin as the culprit. National Geographic, "Why Are Some Dogs More Aggressive?," 4 Oct. 2017 Other research shows that social connection helps to shift the nervous system into a restful state and releases hormones that have anti-inflammatory properties, like oxytocin and vasopressin. Brad Stulberg, The Cut, "How to Actually Get Some Rest for Once," 4 Oct. 2017

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

1927, in the meaning defined above

History and Etymology for vasopressin

from Vasopressin, a trademark

Keep scrolling for more

Learn More about vasopressin

Share vasopressin

Statistics for vasopressin

Look-up Popularity

Time Traveler for vasopressin

The first known use of vasopressin was in 1927

See more words from the same year

Keep scrolling for more

More Definitions for vasopressin

vasopressin

noun
va·so·pres·sin | \ˌvā-zō-ˈpres-ᵊn \

Medical Definition of vasopressin 

: a polypeptide hormone that is secreted together with oxytocin by the posterior lobe of the pituitary gland, is also obtained synthetically, and increases blood pressure and exerts an antidiuretic effect

called also antidiuretic hormone, beta-hypophamine

— see arginine vasopressin, lysine vasopressin, pitressin

More from Merriam-Webster on vasopressin

Britannica.com: Encyclopedia article about vasopressin

Comments on vasopressin

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

WORD OF THE DAY

to reject or criticize sharply

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Bee Cubed

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!