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单词 obsidian
释义

WordReference Random House Learner's Dictionary of American English © 2024
ob•sid•i•an /əbˈsɪdiən/USA pronunciation   n. [uncountable]
  1. Rocksa hard, dark, glasslike substance formed when volcanic eruptions cool.

WordReference Random House Unabridged Dictionary of American English © 2024
ob•sid•i•an  (əb sidē ən),USA pronunciation n. 
  1. Rocksa volcanic glass similar in composition to granite, usually dark but transparent in thin pieces, and having a good conchoidal fracture.
  • Latin; see -an
  • Latin Obsidiānus, printer's error for Obsiānus pertaining to Obsius, the discoverer (according to Pliny) of a similar mineral in Ethiopia; replacing Middle English obsianus
  • 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::
obsidian /ɒbˈsɪdɪən/ n
  1. a dark volcanic glass formed by very rapid solidification of lava
    Also called: Iceland agate
Etymology: 17th Century: from Latin obsidiānus, erroneous transcription of obsiānus (lapis) (stone of) Obsius, the name (in Pliny) of the discoverer of a stone resembling obsidian
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更新时间:2025/7/23 15:21:49