protein
/ˈprəʊtiːn/noun
1- 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, collagen, etc.,and as enzymes and antibodies蛋白质, 朊。
1.1
- mass noun such substances collectively, especially as a dietary component总称（尤指作为饮食成分的）蛋白质：
a diet high in protein.
高蛋白饮食。
派生词
proteinaceous
adjective词源
mid 19th cent.: from French protéine,German Protein，from Greek prōteios 'primary'，from prōtos 'first'.