WHETSTONE
Dictionary of Science, Literature and Art · 1842 · p. 50
A talcy slate containing silica, used for hones. Sse Novaculite. [s. 1340]
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
Jack's Reference Book for Home and Office : An Encyclopaedia of General Information: English Dictionary (1909)
Chamber's Etymological of the English Language (1895)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1854)
Whetstone-slate
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Nuttall's Standard Dictionary of the English Language (1890)
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