pre·cur·sor /prɪˈkɝsɚ, ˈprɪˌ/ 名詞
Pre·cur·sor n. One who, or that which, precedes an event, and indicates its approach; a forerunner; a harbinger.
Evil thoughts are the invisible, airy precursors of all the storms and tempests of the soul. --Buckminster.
Syn: -- Predecessor; forerunner; harbinger; messenger; omen; sign.
n 1: a substance from which another substance is formed
(especially by a metabolic reaction)
2: a person who goes before or announces the coming of another
3: an indication of the approach of something or someone [syn:
harbinger, forerunner, herald]