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单词 gneiss
释义

WordReference Random House Unabridged Dictionary of American English © 2024
gneiss  (nīs),USA pronunciation n. 
  1. Rocksa metamorphic rock, generally made up of bands that differ in color and composition, some bands being rich in feldspar and quartz, others rich in hornblende or mica.
  • German
  • 1750–60
gneissic, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
gneiss /naɪs/ n
  1. any coarse-grained metamorphic rock that is banded and foliated: represents the last stage in the metamorphism of rocks before melting
Etymology: 18th Century: from German Gneis, probably from Middle High German ganeist spark; related to Old Norse gneista to give off sparks

ˈgneissic, ˈgneissoid, ˈgneissose adj
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更新时间:2024/11/13 14:05:03