请输入您要查询的英文单词:

 

单词 tridymite
释义

tridymite

[ trid-uh-mahyt ]
/ ˈtrɪd əˌmaɪt /

noun Mineralogy.

a polymorph of quartz occurring in the form of small crystals, commonly twinned, in siliceous volcanic rocks.

Origin of tridymite

1865–70; <German Tridymit, equivalent to tridym- (Greek trídym(os) triple, equivalent to tri-tri- + ()dymosdidymous) + -it-ite1

Words nearby tridymite

Tridentine, Tridentum, tridermic, tridimensional, triduum, tridymite, triecious, tried, tried-and-true, triella, triene
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for tridymite

  • The crystals, called cristobalite and tridymite, swim in clouds around stars just before they begin to form planets.

    Space Bling: From Diamond Planets to Crystal Oceans to Precious Moon Jewels|Alexa Valiente, Jaewon Kang|October 13, 2012|DAILY BEAST
  • Spherulites may be regarded as radiate aggregates of such microliths (mostly felspar mixed with quartz or tridymite).

    Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7|Various
  • When crystalline grains or blebs of quartz occur, we have a quartz-trachyte; when tridymite is abundant, as in the trachyte of Co.

    Volcanoes: Past and Present|Edward Hull
随便看

 

英语词典包含192737条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/25 2:38:29