Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The branch of petrology that deals with the origin of rocks, especially igneous rocks.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The branch of petrology dealing with the origin of igneous rocks

from The Century Dictionary and Cyclopedia

  • n. The origination of rocks, generally or collectively considered.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

petro- + -genesis

Examples

  • The scientific research carried out on the site has made an important contribution to petrogenesis over a period of nearly 300 years, marking it as a site of great international significance in the history of earth science.

    Giant's Causeway and Causeway Coast, United Kingdom

Comments

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