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petrology

American  
[pi-trol-uh-jee] / pɪˈtrɒl ə dʒi /

noun

  1. the scientific study of rocks, including petrography and petrogenesis.


petrology British  
/ ˌpɛtrəˈlɒdʒɪkəl, pɛˈtrɒlədʒɪ /

noun

  1.  petrol.  the study of the composition, origin, structure, and formation of rocks

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

petrology Scientific  
/ pə-trŏlə-jē /
  1. The scientific study of the origin, composition, and structure of rocks.


Other Word Forms

  • petrologic adjective
  • petrological adjective
  • petrologically adverb
  • petrologist noun

Etymology

Origin of petrology

First recorded in 1805–15; petro- 1 + -logy

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.

“But the petrology is interesting and special regardless,” she says.

From Science Magazine

The mining, the petrology, the archaeology — the artistically gifted, straight-F student, trying to live up to his brilliant, academic, domineering father.

From Seattle Times

It “taught us about hot spot volcanism, about volcano seismology, geodesy, petrology, volcanic structure, hazard mitigation, gas geochemistry, and magmatic plumbing.”

From Washington Post

Chemists get in on the mystery, petrology is born, and the true secret behind melted earth is discovered.

From Scientific American

Metamorphic petrology is no easy material for popular science.

From Nature