pearlash
The American Illustrated Medical Dictionary · 1913 · p. 20
(perl’ash). Impure pota ium carbonate in crystals.
Bu kavram başka kaynaklarda da geçiyor
The Grocer's Eneyclopedia (1911)
Dictionary of Science, Literature and Art (1854)
Dictionary of Science, Literature and Art (1842)
A Dictionary of Arts, Manufactures and Mines (1840)
The American Dictionary and Cyclopedia
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