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De - Pt| English Dictionary: trachyte | by the DICT Development Group |
| 1 result for trachyte | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Trachyte \Tra"chyte\, n. [Gr. [?] rough, rugged: cg. F. trachyte.] (Geol.) An igneous rock, usually light gray in color and breaking with a rough surface. It consists chiefly of orthoclase feldspar with sometimes hornblende and mica. | |
