plumbago

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. used as a lubricant and as a moderator in nuclear reactors
• Syn:
graphite, black lead
• Hypernyms:
carbon, C, atomic number 6
• Hyponyms:
lead, pencil lead, pencil
2. any plumbaginaceous plant of the genus Plumbago
• Hypernyms:
herb, herbaceous plant
• Member Holonyms:
genus Plumbago

• Từ đồng nghĩa / Synonyms:
  graphite, black lead