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Producing heat; -- said of substances, as septic poisons, which elevate the temperature of the body and cause fever.

Produced by fire; igneous. Mantell. .

heat; pertaining to the characters of minerals when examined before the blowpipe; as, the pyrognostic characters of galena.

The characters of a mineral observed by the use of the blowpipe, as the degree of fusibility, flame coloration, etc.

A production of pyrography.

A process of printing, ornamenting, or carving, by burning with heated instruments.

Pyrography; also, a design or picture made by pyrography.

A fire worshiper. [R.] Southey.

The worship of fire. Young.

Pertaining to, or designating, the acid liquid obtained in the distillation of wood, consisting essentially of impure acetic acid.

A crude acetate produced by treating pyroligneous acid with a metal or basic compound; as, pyrolignite of iron (iron liquor).

Same as Pyroligneous.

Same as Pyrouric, or Cyanuric.

One who is versed in, or makes a study of, pyrology.

That branch of physical science which treats of the properties, phenomena, or effects of heat; also, a treatise on heat.

, a mineral of an iron-black or dark steel- gray color and metallic luster, usually soft. Pyrolusite parts with its oxygen at a red heat, and is extensively used in discharging the brown and green tints of glass (whence its name).

Acting by the agency of heat and magnetism; as, a pyromagnetic machine for producing electric currents.

A salt of pyromalic acid. [Obs.]

Pertaining to, or designating, an acid now called maleic acid.

Divination by means of fire.