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English definition of “protein”

protein

noun [C or U]     /ˈprəʊ.tiːn/ US  /ˈproʊ-/
C1 one of the many substances found in food such as meat, cheese, fish, or eggs, that is necessary for the body to grow and be strongTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the bodyAnimal biochemistry
(Definition of protein noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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