Wa"ter dog` (?). 1. Zool. A dog accustomed to the water, or trained to retrieve waterfowl. Retrievers, waters spaniels, and Newfoundland dogs are so trained.
2. Zool. The menobranchus.
3. A small floating cloud, supposed to indicate rain.
4. A sailor, esp. an old sailor; an old salt. [Colloq.]
© Webster 1913. | 
