| Pronunciation: | | pi'trâlujee
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 WordNet Dictionary |
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| | Definition: | |
[n] the branch of geology that studies rocks: their origin and formation and composition |
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PETROLOGY is a 9 letter word that starts with P. |
| | See Also: | | geomorphology, morphology |
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| Webster's 1913 Dictionary |
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| | Definition: | | \Pe*trol"o*gy\, n. [Petro + -logy.]
1. The department of science which is concerned with the
mineralogical and chemical composition of rocks, and with
their classification: lithology.
2. A treatise on petrology.
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