protein

B2 CET-4 Oxf 5000 大学 FREQ #7786 ★★★☆☆

n. 蛋白质 a. 蛋白质的

发音

UK /ˈpɹəʊ.ti.ɪn/
UK /ˈpɹəʊ.tiːn/
US /ˈpɹoʊ.tiːn/
US /ˈpɹoʊ.ti.ɪn/

词形变化

proteins 复数 proteins

教材释义与例句

名词

蛋白质;朊

释义与例句

n. B2 Oxf 5000
  1. 1.

    Any of numerous large, complex naturally-produced molecules composed of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.

    蛋白质

    卵白质

    可数 化学 生物 不可数
  2. 2.

    One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (meat) and some vegetables, such as legumes.

    蛋白质

    卵白质

    不可数 可数
  3. 3.

    A food rich in protein, often a meat or meat substitute.

    可数 不可数

词汇关系

相关短语

词源

From proto- + -ein. Suggested by Jöns Jacob Berzelius in a letter to Gerardus Johannes Mulder, from French protéine and German Protein, both coined based on Ancient Greek πρωτεῖος (prōteîos, “primary”), from πρῶτος (prôtos, “first”).

来源:wiktionary