润肠通便 rùnchángtōngbiàn to relieve constipation Origin Definitions Defs Strokes Stroke Words Sentences Sents 润肠 潤腸 rùncháng to ease constipation To ease constipation by moistening the dry digestive system, according to traditional Chinese medicine.通便 tōngbiàn to relieve constipation to facilitate or promote bowel movements through medicine or diet