trachyte definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a fine-grained, light-colored, extrusive igneous rock, consisting chiefly of alkali feldspars: it is the extrusive equivalent to syenite
Origin: French ; from Classical Greek trachys, rough: see trachea
trachyte definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A light-colored igneous rock consisting essentially of alkali feldspar.
Origin: French, from Greek trākhus, rough.
- tra·chytˈic adjective
trachyte - Science Definition
A light-colored, fine-grained igneous rock consisting primarily of alkali feldspar together with some mafic minerals, especially hornblende. Unlike most igneous rocks, trachyte has little or no quartz. Trachyte is the fine-grained equivalent of syenite.