二に重じゅう結けつ合ごう

noun

double bond

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

• エチレンには炭たん素そ間かんに二に重じゅう結けつ合ごうがある。

  Ethylene has a double bond between the carbon atoms.

• 二に重じゅう結けつ合ごうは単たん結けつ合ごうより反はん応のう性せいが高たかい。

  Double bonds are more reactive than single bonds.