WHETSTONE
Dictionary of Science, Literature and Art · 1854 · p. 34
A talcy slate containing silica, us for hones. See Novacvlite. [s. 1350]
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
Chamber's Etymological of the English Language (1895)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1842)
Whetstone-slate
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Nuttall's Standard Dictionary of the English Language (1890)
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