a species of tufa.
| 单词 | θ5908 |
| 释义 | the world > the earth > structure of the earth > constituent materials > stone > [noun] > porous stone (4) sieve-stone1681 a species of tufa. siliquastre1708 (See quots.) tufa1777 A generic name for porous stones, formed of pulverulent matter consolidated and often stratified. (See Note s.v. tuff, n.) sucked stone1778 a honeycombed stone occurring in the tin lodes of Cornwall. |
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