柯林斯词典obsidian /ɒbˈsɪdɪən/ 1. N a dark volcanic glass formed by very rapid solidification of lava 黑曜石 (Also called Iceland agate) 返回 obsidian剑桥词典a type of almost black rock that is like glass 黑曜岩，黑曜石 返回 obsidian