Volcanic flame or heat; incandescent lava. Also: a volcanic eruption or outburst; a lava flow.

transferred. The fire of a volcano; the volcano itself.

In various specific uses (wild often implying ‘natural, not artificially produced’, or ‘out of… †Volcanic fire (obsolete); fire-damp in coal-mines.

(a) a device which shoots out burning liquid or flames (rare); (b) a jet of fire or burning material; esp. = fire fountain, n. 2 (now rare).