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.

Nearby words

  1. trachomatous panniculus,
  2. trachy-,
  3. trachybasalt,
  4. trachycarpous,
  5. trachyspermous,
  6. trachytic,
  7. trachytoid,
  8. tracing,
  9. tracing paper,
  10. tracing tape

Origin of trachyte

1815–25; < French < Greek trāchýtēs roughness, equivalent to trāchý(s) rough + -tēs noun suffix

Related formstra·chyt·ic [truh-kit-ik] /trəˈkɪt ɪk/, trach·y·toid [trak-i-toid, trey-ki-] /ˈtræk ɪˌtɔɪd, ˈtreɪ kɪ-/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trachytic


British Dictionary definitions for trachytic

trachytic

/ (trəˈkɪtɪk) /

adjective

(of the texture of certain igneous rocks) characterized by a parallel arrangement of crystals, which mark the flow of the lava when still molten

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 Formstrachytoid (ˈtrækɪˌtɔɪd, ˈtreɪ-), adjective

Word 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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for trachytic

trachyte

[ trākīt′, trăkīt′ ]

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 Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.