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pentoxide [pentoxides]▼◼◼◼noun[UK: pentˈɒksaɪd] [US: pentˈɑːksaɪd]
phosphorus pentoxide▼◼◼◼adjective[UK: ˈfɒ.sfə.rəs] [US: ˈfɑː.sfə.rəs]
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