endorphin
noun
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The word endorphin was coined, back when the substances were discovered in the 1970s, by joining pieces of endogenous and morphine, morphine being a narcotic that closely resembles the endorphins and relieves pain in a similar way. Studies suggest that the pain-relieving practice called acupuncture works by releasing endorphins. Endorphins also seem to play an important role in pregnancy. Though much remains to be learned about the endorphins, the general public seems ready to give them credit for any all-natural high.
Examples of endorphin in a Sentence
Hailey Roden, The Enquirer, 31 Aug. 2025
Hot, fresh bread with sweet butter creates a release of endorphins.
—Fort Worth Star-Telegram, 30 Aug. 2025
Though endorphins are just one of several types of protein molecules with this painkiller quality, the word is often used to refer to them collectively.
—Dr. Sanjay Gupta, CNN Money, 26 Aug. 2025
Recognizing a teammate’s effort can stimulate dopamine; expressing genuine gratitude can activate oxytocin; giving employees autonomy over their work can boost serotonin; and sharing a light-hearted moment or story can trigger endorphins and lift team morale.
—Anjali Chaudhry, Forbes.com, 24 Aug. 2025
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Cite this Entry
“Endorphin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endorphin. Accessed 10 Sep. 2025.
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endorphin
noun
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