rare. [a. OF. effumation, as if ad. L. *effūmātiōn-em, f. effūmāre: see next.] The action of converting into ‘fumes’ or vapor; concr. a vapor emitted.
1666. G. Harvey, Morb. Angl. (1672), iv. 46–7. Swelling ebullition, whence afterwards those hot effumations … arise.
1684. trans. Bonet’s Merc. Compit., XIV. 494/1. Instruments fit for Effumation and Vaporation.
