petrified wood, esp. a form of quartz consisting of silicified wood.
单词 | θ5567 |
释义 | the world > the earth > structure of the earth > constituent materials > rock > concretion or petrifaction > [noun] > specific (6) wood-stone1794 petrified wood, esp. a form of quartz consisting of silicified wood. shell rock1807 hard rock consisting largely of compacted seashells. petrified forest1830 an area covered with the petrified remains of trees, usually broken and scattered across the ground; also figurative. biolith1852 Originally: a rock of organic origin; spec. one composed of the remains of living organisms or produced by the activity of such organisms. In later… dogger1876 Geology. Any large, more or less ovoid concretion, usually of sandstone or limestone. spongolite1945 a rock formed almost entirely of sponge spicules. |
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