三さん重じゅう結けつ合ごう

noun

triple bond

Chemistry term for a covalent bond where three pairs of electrons are shared between two atoms.

• アセチレン分ぶん子しは炭たん素そ原げん子し間かんに三さん重じゅう結けつ合ごうを持もつ。

  The acetylene molecule has a triple bond between its carbon atoms.