chlorine

Từ điển Oxford Learners Wordfinder Dictionary

noun

a common nonmetallic element belonging to the halogens;
best known as a heavy yellow irritating toxic gas;
used to purify water and as a bleaching agent and disinfectant;
occurs naturally only as a salt (as in sea water) (Freq. 32)
• Syn:
Cl, atomic number 17
• Derivationally related forms:
chlorinate
• Hypernyms:
chemical element, element, gas, halogen
• Hyponyms:
radiochlorine
• Substance Holonyms:
sodium chloride, common salt

• Từ đồng nghĩa / Synonyms:
  Cl, atomic number 17