lubricant

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a substance capable of reducing friction by making surfaces smooth or slippery
• Syn:
lubricator, lubricating substance, lube
• Derivationally related forms:
lubricate (for: lubricator), lubricate
• Hypernyms:
substance
• Hyponyms:
drilling mud, drilling fluid, motor oil

• Từ đồng nghĩa / Synonyms:
  lubricator, lubricating substance, lube