protein

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See also: Protein

English

Etymology

From proto- + -ein. Suggested by Jöns Jacob Berzelius in a letter to Gerardus Johannes Mulder, from French protéine and German Protein, both coined based on Ancient Greek πρωτεῖος (prōteîos, primary), from πρῶτος (prôtos, first).[1]

Pronunciation

Noun

protein (countable and uncountable, plural proteins)

  1. (biochemistry, countable) Any of numerous large, complex naturally-produced molecules composed of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.
    Synonyms: see Thesaurus:protein
    Meronym: amino acid
    • 2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 534:
      Proteins carry out the bulk of cellular functions, including relaying signals, providing structural support, and accelerating biochemical reactions.
  2. (nutrition, uncountable) One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (meat) and some vegetables, such as legumes.
    Synonyms: see Thesaurus:protein
    Coordinate terms: carbohydrate, fat
  3. (nutrition, countable) A food rich in protein, often a meat or meat substitute.
    • 2015 April 29, Mandy Unanski Enright, “One Meal, Two Proteins”, in Nutrition Nuptials, archived from the original on 11 April 2019:
      The preparation style should be the same for both proteins so that the side dishes compliment the meal.
    • 2017, Daphne's California Greek, Catering Menu:
      Served with seasoned rice, classic Greek salad, pita, tzatziki, choice of 2 proteins & 2 sides
    • 2018 May 31, Mary Kekatos, Daily Mail:
      What should you get for lunch at a halal cart? Nutritionists explain how to pick a protein that isn't packed with calories and why you should beware the white sauce

Derived terms

Translations

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References

  1. James A. H. Murray et al., editors (1884–1928), “Protein”, in A New English Dictionary on Historical Principles (Oxford English Dictionary), London: Clarendon Press, →OCLC.

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