r·Word RadicalsLATIN & GREEK

Nature terminology · Earth & landscapes

petr/o — Rock

petr/o means rock. Ancient Greek source words and nature terminology examples: petrology.

Meaning and source words

Meaning: Rock

Examples and word parts

petrology

The study of rocks and how they form.

Word parts: petr/o (rock) + -logy (study of)

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Sources and usage

From the Word Radicals nature terminology collection. Source words and word parts are learning references; modern meanings can differ from their classical sources.

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