碘 (diǎn) - Iodine — a chemical element (symbol I, atomic & a dark violet nonmetallic element essential for thyroid

碘Tone 3

diǎn ｜ 13 strokes ｜ radical:

橙丁

碘 · diǎn

Iodine — a chemical element (symbol I, atomic number 53);

a dark violet nonmetallic element essential for thyroid function.

Iodine — a chemical element (symbol I, atomica dark violet nonmetallic element essential for thyroid

Usage highlights

Iodine deficiencyIodine tinctureIodine solutionIodized saltIodine valueIodine test

Synonyms

  • 碘素— iodine (less common term)

Usage & contexts

Examples

  • Iodine is used as a disinfectant (碘酒).
  • Iodine deficiency can cause health problems (碘缺乏).
  • The doctor applied iodine tincture to the wound (碘酊).
  • Table salt is often iodized to prevent deficiency (加碘盐).

Collocations

  • Iodine deficiency(碘缺乏)
  • Iodine tincture(碘酊)
  • Iodine solution(碘液)
  • Iodized salt(碘盐)
  • Iodine value(碘值)
  • Iodine test(碘试验)

Cultural background

FAQ
  • Iodine was discovered in 1811 by French chemist Bernard Courtois.
  • In Chinese medicine, iodine-rich foods like seaweed are traditionally used for thyroid health.
  • Iodine deficiency was a major public health issue in some inland regions of China before iodized salt programs.

FAQ