Толковый словарь английского языка - potassium
Potassium
potassium
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1.
n. Chem. a soft silver-white metallic element occurring naturally in seawater and various minerals, an essential element for living organisms, and forming many useful compounds used industrially. Usage Symb.: K. Phrases and idioms potassium chloride a white crystalline solid used as a fertilizer and in photographic processing. potassium cyanide a highly toxic solid that can be hydrolysed to give poisonous hydrogen cyanide gas: also called CYANIDE. potassium iodide a white crystalline solid used as an additive to table salt to prevent iodine deficiency. potassium permanganate a purple crystalline solid that is used in solution as an oxidizing agent and disinfectant. Derivatives potassic adj. Etymology: POTASH + -IUM ...Толковый словарь английского языка Oxford English Reference
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