氫氧 [氢－]

Jyutping hing1 joeng5
Pinyin qīng yǎng

Definitions (CC-CEDICT)
  1. hydroxide (e.g. caustic soda NaOH)
Definitions (Wiktionary)
  1. noun
    (inorganic chemistry) hydroxide ion
  2. noun
    oxyhydrogen (mixture of hydrogen and oxygen gases)
  3. noun
    (organic chemistry) hydroxyl group
Examples (Wiktionary)
  1. Mandarin
    氢氧化钠
    氫氧化鈉
    qīng yǎng huà nà
    • sodium hydroxide