trachyte
[ trey-kahyt, trak-ahyt ]
/ ˈtreɪ kaɪt, ˈtræk aɪt /
noun
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.
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Origin of trachyte
1815–25; <French <Greek trāchýtēs roughness, equivalent to trāchý(s) rough + -tēs noun suffix
OTHER WORDS FROM trachyte
tra·chyt·ic [truh-kit-ik], /trəˈkɪt ɪk/, trach·y·toid [trak-i-toid, trey-ki-], /ˈtræk ɪˌtɔɪd, ˈtreɪ kɪ-/, adjectiveWords nearby trachyte
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for trachyte
British Dictionary definitions for trachyte
trachyte
/ (ˈtreɪkaɪt, ˈtræ-) /
noun
a light-coloured fine-grained volcanic rock of rough texture consisting of feldspars with small amounts of pyroxene or amphibole
Derived forms of trachyte
trachytoid (ˈtrækɪˌtɔɪd, ˈtreɪ-), adjectiveWord Origin for trachyte
C19: from French, from Greek trakhutēs, from trakhus rough
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for trachyte
trachyte
[ trā′kīt′, trăk′īt′ ]
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.
The American Heritage® Science Dictionary
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