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pyrogenous

American  
[pahy-roj-uh-nuhs] / paɪˈrɒdʒ ə nəs /

adjective

Geology.
  1. pyrogenic.


Etymology

Origin of pyrogenous

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Hy′dric, containing hydrogen; Hydrog′enous, containing hydrogen: produced by the action of water, as applied to rocks in opposition to those that are pyrogenous, formed by the action of fire.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various

And yet not a mountain meets the eye—not even a hill—but the dark cyprières, draped with the silvery tillandsia, form a background to the picture with all the grandeur of the pyrogenous granite!

From The Quadroon Adventures in the Far West by Reid, Mayne

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