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pyrogenous

[ pahy-roj-uh-nuhs ]

adjective

, Geology.


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Word History and Origins

Origin of pyrogenous1

First recorded in 1830–40; pyro- + -genous
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Example Sentences

Gold is, however, much more common in the alluvial grounds than among the primitive and pyrogenous rocks just described.

Pyrogenous oil of turpentine is another cheap and good solvent.

It is, however, much more common in alluvial grounds than among primitive and pyrogenous rocks.

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pyrogenicpyrognostics