戊巴比妥钠 wùbābǐtuǒnà pentobarbital sodium Origin Definitions Defs Strokes Stroke Words Sentences Sents 戊 wù the fifth Heavenly Stem the fifth of the ten Heavenly Stems; also used to represent the fifth in a series, such as the letter 'E' or the Roman numeral 'V'巴比妥 bābǐtuǒ phonetic barbital barbital; barbitone钠 鈉 nà noun sodium sodium; natrium (chemical element Na)