Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Language: French
Origin: protéine, from Greek protos 'first'

protein

noun
     
Related topics: Nutrition, Biology
pro‧tein W2 [uncountable and countable]
DFN one of several natural substances that exist in food such as meat, eggs, and beans, and which your body needs in order to grow and remain strong and healthy

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