ＢＣ

noun

BC; Before Christ

Used in historical dating to indicate years before the traditional birth of Christ. In Japanese, often read as ビーシー and used in academic or formal contexts.

• 紀き元げん前ぜん200年ねんは、ＢＣ200年ねんとも表ひょう記きされる。

  The year 200 BCE is also written as 200 BC.

noun

biological and chemical weapons

Abbreviation used in military or security contexts, referring to weapons that use biological or chemical agents. Often part of compounds like ＢＣ兵器.

• ＢＣ兵器びーしーへいきの使し用ようは国こく際さい条じょう約やくで禁きん止しされている。

  The use of biological and chemical weapons is prohibited by international treaties.