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Definition of Phosphorus pentoxide
1. Noun. (inorganic compound) the compound, P2O5, formed by the spontaneous combustion of white phosphorus in air; it reacts violently with water to form phosphoric acid and is used as a powerful desiccating agent ¹
¹ Source: wiktionary.com
Medical Definition of Phosphorus pentoxide
1. P2O5;the ultimate anhydride of orthophosphoric acid; a drying and dehydrating agent; corrosive. (05 Mar 2000)