radium

Từ điển Oxford Learners Wordfinder Dictionary

noun

an intensely radioactive metallic element that occurs in minute amounts in uranium ores
• Syn:
Ra, atomic number 88
• Hypernyms:
metallic element, metal
• Substance Holonyms:
uranium ore

• Từ đồng nghĩa / Synonyms:
  Ra, atomic number 88