- excessive thirst and fluid intake
- Chronic excessive intake of water; it may be from an organic cause, such as the dehydration of diabetes mellitus, diabetes insipidus, or a reaction to medication, or from a psychological cause. When untreated it can lead to water intoxication.
Definition from: NCI Thesaurus via Unified Medical Language System at the National Library of Medicine
- Excessive or abnormal thirst.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.