| 单词 | precursor chemical |
| 释义 | precursor chemical in British English (priːˈkɜːsə ˈkɛmɪkəl) noun another name for precursor (sense 3) precursor in British English (prɪˈkɜːsə) noun 1. a person or thing that precedes and shows or announces someone or something to come; harbinger 2. a predecessor or forerunner 3. a chemical substance that gives rise to another more important substance Word origin C16: from Latin praecursor one who runs in front, from praecurrere, from prae in front + currere to run |
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