Webster's Revised Unabridged Dictionary · 1913

Carburet

Carburet , noun

[From Carbon.]

(Chemistry) A carbide. See Carbide [Archaic]

Carburet , transitive verb

To combine or to impregnate with carbon, as by passing through or over a liquid hydrocarbon; to carbonize or carburize.
By carbureting the gas you may use poorer coal. — Knight