Definitions for trachyteˈtreɪ kaɪt, ˈtræk aɪt
Random House Webster's College Dictionary
tra•chyteˈtreɪ kaɪt, ˈtræk aɪt(n.)
a fine-grained volcanic rock consisting essentially of alkali feldspar and one or more subordinate minerals, as hornblende or mica: the extrusive equivalent of syenite.
Category: Petrology
Origin of trachyte:
1815–25; < F < Gk trāchýtēs roughness =trāchý(s) rough +-tēs n. suffix
tra•chyt•ictrəˈkɪt ɪk; ˈtræk ɪˌtɔɪd, ˈtreɪ kɪ-(adj.)
Wiktionary
trachyte(Noun)
A pale igneous rock consisting mostly of potassium feldspar and plagioclase.
Origin: From trachyte, from τρᾱχύς.
Webster Dictionary
Trachyte(noun)
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
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