资料来源 : pyDict

试药,试剂,反应物

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Reagent \Re*a"gent\, n. (Chem.)
   A substance capable of producing with another a reaction,
   especially when employed to detect the presence of other
   bodies; a test.

资料来源 : WordNet®

reagent
     n : a chemical agent for use in chemical reactions