How to say "calcium" in Japanese

• カルシウムCommon
  nounThe everyday word for calcium, the element Ca. Use it when talking about calcium in food, health, or chemistry, as in discussions of calcium-rich foods or calcium deficiency.
  彼かれの食事しょくじにはカルシウムが欠かけている。↗

  Calcium is absent from his diet.
• Ｃａシー・エー
  nounThe chemical symbol for the element calcium, read シー・エー. It is an abbreviation rather than a spoken word, so it appears mainly in scientific and technical writing, not in everyday conversation.

Use 「カルシウム」 for calcium in ordinary contexts such as nutrition and chemistry; Ｃａ is simply the chemical abbreviation for the element, used mainly in scientific writing and formulas.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• カルシウムcalcium (Ca)
• Ｃａシー・エーcalcium (Ca)