Webster's Revised Unabridged Dictionary · 1913

Adustion

Adustion (?; 106) , noun

[Latin adustio, from adurere, adustum: compare French adustion.]

1.
The act of burning, or heating to dryness; the state of being thus heated or dried. [Obsolete] — Harvey
2.
(Surgery) Cauterization. — Buchanan