Mining. Lead ore consisting of particles small enough to pass through a sieve, or ground to powder. Now historical.
| 单词 | θ215464 |
| 释义 | society > occupation and work > materials > raw material > mineral material > ore > [noun] > lead-ore > finest part of (2) smitham1584 Mining. Lead ore consisting of particles small enough to pass through a sieve, or ground to powder. Now historical. smeddum1853 Mining. = smitham, n. 1. |
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