calcium oxide

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a white crystalline oxide used in the production of calcium hydroxide
• Syn:
quicklime, lime, calx, calcined lime, fluxing lime,
unslaked lime, burnt lime
• Derivationally related forms:
lime (for: lime)
• Hypernyms:
oxide
• Substance Meronyms:
calcium, Ca, atomic number 20