effluvial


ef·flu·vi·um

E0050400 (ĭ-flo͞o′vē-əm)n. pl. ef·flu·vi·a (-vē-ə) or ef·flu·vi·ums 1. A usually invisible emanation or exhalation, as of vapor or gas.2. a. A byproduct or residue; waste.b. The odorous fumes given off by waste or decaying matter.3. An impalpable emanation; an aura.
[Latin, from effluere, to flow out; see effluent.]
ef·flu′vi·al adj.