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Word: protein (lookup usage) (lookup stats)


Meaning:

Noun:

  • biochemistry A large, complex molecule composed of one or more long chains of amino acids, in which each chain is held together by peptide bonds.
  • nutrition One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (''ie: meat'') and some vegetables, such as legumes. ''see carbohydrate and fat for the other two major classes''

Source: Wiktionary | Src Info »