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Pyr-}. [Gr. , , fire.] Combining forms designating fire or heat; specifically (Chem.), used to imply an actual or theoretical derivative by the action of heat; as in pyrophosphoric, pyrosulphuric, pyrotartaric, pyrotungstic, etc. Py"ro (), n.(Photog.) Abbreviation of pyrogallic acid. [Colloq.] スポンサード リンク
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