[ pe-troh-jen-uh-sis ]

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

  2. the origin and formation of rocks.

Origin of petrogenesis

First recorded in 1900–05; petro-1 + -genesis
  • Also called pe·trog·e·ny [pi-troj-uh-nee]. /pɪˈtrɒdʒ ə ni/.

Other words from petrogenesis

  • pet·ro·ge·net·ic [pe-troh-juh-net-ik], /ˌpɛ troʊ dʒəˈnɛt ɪk/, adjective

Words Nearby petrogenesis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Scientific definitions for petrogenesis


[ pĕt′rō-jĕnĭ-sĭs ]

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

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.