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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 pro·tein /ˈproˌtin ||ˈprotiən/
 蛋白質(a.)蛋白質的

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 pro·tein /ˈproˌtɪn, ˈprotɪən/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Pro·te·in, n. Physiol. Chem. In chemical analysis, the total nitrogenous material in vegetable or animal substances, obtained by multiplying the total nitrogen found by a factor, usually 6.25, assuming most proteids to contain approximately 16 per cent of nitrogen.
 

From: Webster's Revised Unabridged Dictionary (1913)

 Pro·te·in n.  Physiol. Chem. any polymer of an amino acid joined by peptide (amide) bonds.  Most natural proteins have alpha-amino acids as the monomeric constituents.  All classical enzymes are composed of protein, and control most of the biochemical transformations carrie dout in living cells.  They may be soluble, as casein, albumins, and other globular proteins, or insoluble (e. g. "structural proteins"), as collagen or keratin.  "albumin", an older term for protein, is now used primarily to refer to certain specific soluble globular proteins found in eggs or blood serum, e.g.  bovine serum albumin, the main soluble protein in teh serum of cattle, used as an enzymatically inert protein in biochemical research.
 Note: In the 1913 dictionary, protein was defined as: “A body now known as alkali albumin, but originally considered to be the basis of all albuminous substances, whence its name.”
 Protein crystal. Bot. See Crystalloid, n., 2.
 

From: WordNet (r) 2.0

 protein
      n : any of a large group of nitrogenous organic compounds that
          are essential constituents of living cells; consist of
          polymers of amino acids; essential in the diet of animals
          for growth and for repair of tissues; can be obtained
          from meat and eggs and milk and legumes; "a diet high in
          protein"