precursor
precursor
noun
noun
- a person or thing that comes before another of the same kind; a forerunner
前身；先锋，先驱
a three-stringed precursor of the violin.
小提琴的三弦前身。
[as modifier]precursor cells.
前身细胞。
■a substance from which another is formed, especially by metabolic reaction
（尤指经新陈代谢形成另一种物质的）前体，前质
pepsinogen is the inactive precursor of pepsin.
胃蛋白酶原是胃蛋白酶的无活性前体。
- late Middle English: from Latin praecursor, from praecurs- 'preceded', from praecurrere, from prae 'beforehand' + currere 'to run'
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