| 释义 | 
		hu·min \ˈhyümə̇n\ noun (-s) Etymology: German, from New Latin humus + German -in  : any of various dark-colored insoluble usually amorphous substances formed in many reactions: as  a.  : a substance obtained from humus (as the residue from treatment with cold alkali)  b.  : a pigment formed in the acid hydrolysis of protein containing tryptophan — compare melanoidin |