二に重じゅう結けつ合ごうMeaningsNoun1. double bondKanji used二two重heavy結tied together合come togetherPitch accentにじゅうけつごうComposed of二に重じゅうdouble; two-fold; two layers; duplex; diplo-; dipl-Noun結けつ合ごうcombination; union; joining; linking; coupling; bond; join (in relational algebra)Noun