buckskin: a soft yellowish suede leather originally from deerskin but now usually from sheepskin
leather: an animal skin made smooth and flexible by removing the hair and then tanning
diabetes insipidus: a rare form of diabetes resulting from a deficiency of vasopressin (the pituitary hormone that regulates the kidneys); characterized by the chronic excretion of large amounts of pale dilute urine which results in dehydration and extreme thirst