钒 fán vanadium Origin Definitions Defs Strokes Stroke Words Sentences Sents 五氧化二钒 wǔyǎnghuà'èrfán vanadium pentoxide Vanadium pentoxide (V2O5), also known as vanadic anhydride, commonly used as a catalyst in industrial processes. Sources Frequency data MTSU Chinese text computingSUBTLEX-CH