| potassa | <chemistry> Potassium oxide. Potassium hydroxide, commonly called caustic potash. Origin: NL, fr. E. Potash. Source: Websters Dictionary (01 Mar 1998) |
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| potassamide | <chemistry> A yellowish brown substance obtained by heating potassium in ammonia. Origin: Potassium + amide. Source: Websters Dictionary (01 Mar 1998) |