千焦耳 qiānjiāo'ěr kilojoule Origin Definitions Defs Strokes Stroke Words Sentences Sents 千 qiān numeral thousand thousand; the number 1,000; the financial form is 仟 qiān焦耳 jiāo'ěr joule A unit of energy or work, equal to the work done by a force of one 牛顿 niúdùn moving an object one meter; named after the British physicist James Prescott Joule.