carnitine

noun
car·​ni·​tine | \ ˈkär-nə-ˌtēn How to pronounce carnitine (audio) \

Definition of carnitine

: a quaternary ammonium compound C7H15NO3 that is present especially in vertebrate muscle, that in the levorotatory form is involved in the transfer of fatty acids across mitochondrial membranes, and in humans is obtained from food (such as meat or milk) or is synthesized chiefly in the liver and kidneys from a lysine derivative

Examples of carnitine in a Sentence

Recent Examples on the Web Energy drinks, while sporting much less sugar than their rivals, contain potentially dangerous stimulants such as caffeine, guarana, taurine, ginseng, l-carnitine and creatine. Sandee Lamotte, CNN, "Billions spent on ads encouraging minority youth to drink sugar-laden beverages despite health consequences," 23 June 2020 The supplement that started it all, L-carnitine, was not banned and not considered off limits if infused at amounts of 50 milliliters or less. BostonGlobe.com, "Suspicious athletes led to coaching great Alberto Salazar’s downfall - The Boston Globe," 2 Oct. 2019 His penalty stemmed from violations that included trafficking in testosterone, tampering with the doping control process and administering improper infusions of L-carnitine, a naturally occurring substance that converts fat into energy. Matthew Futterman, New York Times, "For Salazar Whistle-Blowers, a Long Wait for a Satisfying Outcome," 6 Oct. 2019 Among other allegations, Salazar and Brown are accused of possessing and trafficking testosterone gel and using infusions of a supplement called L-carnitine that can greatly enhance athletic performance. oregonlive, "2019 in review: A year in Oregon news," 27 Dec. 2019 The supplement that started it all, L-carnitine, was neither banned nor considered off limits if infused at amounts of 50 milliliters or less. Washington Post, "Suspicious athletes led to coaching great Salazar’s downfall," 2 Oct. 2019 But, most importantly, it’s filled with L-carnitine, which, just like caffeine, can temporarily minimize the appearance of cellulite, thanks to its fat-dehydrating properties. Chloe Metzger, Marie Claire, "Because You’ve Been Wondering: Do Skin-Firming Creams Really Work?," 24 Oct. 2017 The heart muscle, specifically, supplies critical amino acids like carnitine and taurine. + Chicken gizzards. Marygrace Taylor, Good Housekeeping, "4 Holistic Vets Reveal Exactly What They Feed Their Dogs," 5 Apr. 2017 Parliamentary committee recommends the British General Medical Council investigate an L-carnitine injection given to Farah in 2014. Ken Goe, OregonLive.com, "What did David Ribich say to Centro at the USATF Champs? Oregon track & field rundown," 6 Mar. 2018

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

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First Known Use of carnitine

circa 1922, in the meaning defined above

History and Etymology for carnitine

International Scientific Vocabulary, from Latin carn-, caro

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Time Traveler for carnitine

Time Traveler

The first known use of carnitine was circa 1922

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Cite this Entry

“Carnitine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carnitine. Accessed 1 Dec. 2020.

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More Definitions for carnitine

carnitine

noun
car·​ni·​tine | \ ˈkär-nə-ˌtēn How to pronounce carnitine (audio) \

Medical Definition of carnitine

: a quaternary ammonium compound C7H15NO3 that is present especially in vertebrate muscle, is involved in the transfer of fatty acids across mitochondrial membranes, and in humans is obtained from food (as meat or milk) or is synthesized from a lysine derivative

More from Merriam-Webster on carnitine

Britannica.com: Encyclopedia article about carnitine

Comments on carnitine

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