共きょう有ゆう結けつ合ごうきょうゆうけつごうMeanings1nouncovalent bondchemistryTechnical term in chemistry; refers to a chemical bond where atoms share electron pairs.水すい分ぶん子しは共きょう有ゆう結けつ合ごうでできている。A water molecule is formed by covalent bonds.