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petrogenesis

[ pe-troh-jen-uh-sis ]

noun

  1. the branch of petrology dealing with the origin and formation of rocks.
  2. the origin and formation of rocks.

petrogenesis

/ pĕt′rō-jĕn′ĭ-sĭs /

  1. The branch of petrology that deals with the origin and formation of rocks, especially igneous rocks.

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Other Words From

  • pet·ro·ge·net·ic [pe-troh-j, uh, -, net, -ik], adjective

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Word History and Origins

Origin of petrogenesis1

First recorded in 1900–05; petro- 1 + -genesis

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