伦理学 lúnlǐxué ethics Origin Definitions Defs Strokes Stroke Words Sentences Sents 伦理 倫理 lúnlǐ noun ethics ethics; moral principles governing human relationships and conduct学 學 xué nounaffix branch of learning (bound form) a subject or branch of study; often used as a suffix for -logy, -ics, or -science