[mass noun]a process by which substances are produced and discharged from a cell, gland, or organ for a particular function in the organism or for excretion 分泌 ■[count noun]a substance discharged in such a way 分泌物
语源
mid 17th cent.: from French sécrétion or Latin secretio(n-) 'separation', from secret- 'moved apart', from the verb secernere