重氢 zhòngqīng deuterium Definitions Defs Origin Strokes Stroke Words Sentences Sents 重 zhòng adjective heavy having great weight; weighing a lot氢 氫 qīng noun hydrogen the chemical element hydrogen, a colorless, odorless, and tasteless gas that is the lightest of all known substances; usually referred to as 氢气 qīngqì
