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Webster 1913 Edition

Noun.

[

Pyro-

-logy

: cf. F.

pyrologie

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

Noun.

[Gr., fire; discourse.] A treatise on heat; or the natural history of heat, latent and sensible.

pyrology ‎(uncountable)

(dated) the scientific study of the effects of heat or flame, often in regards to explosives or chemical compounds.