enkephalin

noun
en·​keph·​a·​lin | \ in-ˈke-fə-lən How to pronounce enkephalin (audio) , -(ˌ)lin, en- \

Definition of enkephalin

: either of two pentapeptides with opiate and analgesic activity that occur naturally especially in the brain and have a marked affinity for opiate receptors — compare endorphin

Examples of enkephalin in a Sentence

Recent Examples on the Web During that time, your body tends to produce less endorphins and enkephalins, which are natural pain-killers, than at any other time of day, according to the National Headache Foundation. Korin Miller, SELF, 24 Aug. 2017

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

First Known Use of enkephalin

1975, in the meaning defined above

History and Etymology for enkephalin

enkephal- (alteration of encephal-) + -in

Learn More About enkephalin

Time Traveler for enkephalin

Time Traveler

The first known use of enkephalin was in 1975

See more words from the same year

Dictionary Entries Near enkephalin

enjoyment

enkephalin

Enkianthus

See More Nearby Entries 

Statistics for enkephalin

Cite this Entry

“Enkephalin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/enkephalin. Accessed 27 Jan. 2022.

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

More Definitions for enkephalin

enkephalin

noun
en·​keph·​a·​lin | \ in-ˈkef-ə-lən, -(ˌ)lin How to pronounce enkephalin (audio) \

Medical Definition of enkephalin

: either of two pentapeptide endorphins:

More from Merriam-Webster on enkephalin

Britannica.com: Encyclopedia article about enkephalin

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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!