Home›Browse›D›diabetes insipidusdiabetes insipidusOur editors are putting together more complete content — check back in about 20 minutesdiabetes insipidusdiabetes insipidus — nounnoun1. a rare disorder causing excessive thirst and urination1.nounDefinitiona rare disorder causing excessive thirst and urinationExampleDiabetes insipidus is different from diabetes mellitus.