A vapour or fume given out by a substance when heated or burned.

An exhalation of the nature of steam, or an emanation consisting of imperceptible particles, usually due to the effect of heat upon moisture. In…

concrete. That which is exhaled; a mist, vapour, etc.; an emanation or effluvium, a scent. Also collective.

concrete. A fumy or vaporous exhalation from anything, a fume; the volatile part given off from a mineral or the like.

The action of suffumigating or fumigating from below; an instance of this; chiefly concrete (usually p… gen. A fume, vapour. Obsolete.

= effluvium, n. 2a. Obsolete.

That which is breathed out, an exhalation.

A vapour, exhalation.

= suffumigation, n.

Something emitted or radiated by a material object; esp. applied to impalpable things, as light, a magnetic or electric effluvium, an odour, etc.