protein
Pronunciation: /ˈprəʊtiːn/
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Definition of protein
noun
- any of a class of nitrogenous organic compounds which have large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms, especially as structural components of body tissues such as muscle, hair, etc., and as enzymes and antibodies: a protein found in wheat animal proteins
Derivatives
Origin:
mid 19th century: from French protéine, German Protein, from Greek prōteios 'primary', from prōtos 'first'
Spelling help
Remember that protein is spelled with the e before the i: it does not follow the rule of i before e except after c.
Spelling tip
it is essential to include protein in your diet.