| 单词 | tufa |
| 释义 | tufa —tufaceous /tooh fay"sheuhs, tyooh-/, adj. /tooh"feuh, tyooh"-/, n. Geol. 1. Also called calcareous tufa, calc-tufa, calc-tuff. a porous limestone formed from calcium carbonate deposited by springs or the like. Cf. travertine. 2. (not in technical use) tuff2. [1760-70; < It tufo < L tofus] |
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