n.
Pronunciation: e- ' flü-v ē - ə m
Variant: also ef · flu · via \ -v ē - ə \
Function: noun
Inflected Form: plural -via also -vi · ums
Etymology: Latin effluvium act of flowing out, from effluere
Date: 1651
1 : an invisible emanation especially : an offensive exhalation or smell
2 : a by-product especially in the form of waste