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pyrogenous

[pahy-roj-uh-nuh s] /paɪˈrɒdʒ ə nəs/
adjective, Geology
1.
pyrogenic (def 2).
Origin of pyrogenous
1830-1840
1830-40; pyro- + -genous
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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