Definition of "seadog" in English

noun

1. A sailor accustomed to the sea.

   • The old seadog knew the storm was coming long before the rest of the crew were aware of it.

2. A pirate.

3. (archaic, Scotland) A seal, especially a harbor seal. (marine mammal)

4. (heraldry) A charge resembling the talbot but with scales, webbed feet and a broad tail.

5. (informal) Synonym of sea puppy.

6. A dogfish.

7. (uncommon) An omen of bad luck.

8. (uncommon) A white-topped wave in an estuary.

9. (uncommon) A fogbow, as seen by mariners.