We found 10 dictionaries that define the word fish duck:

General (9 matching dictionaries)

1. fish duck: Merriam-Webster
2. fish duck: Vocabulary.com
3. fish-duck, fish duck: Wordnik
4. fish duck: Infoplease Dictionary
5. Fish duck, fish duck: Dictionary.com
6. fish duck: Rhymezone
7. fish duck: FreeDictionary.org
8. fish duck: Mnemonic Dictionary
9. fish duck: TheFreeDictionary.com

Computing (1 matching dictionary)

10. fish duck: Encyclopedia

(Note: See fish_ducks as well.)

Definitions from WordNet (fish duck) ▸ noun:  large crested fish-eating diving duck having a slender hooked bill with serrated edges ▸ Words similar to fish duck ▸ Usage examples for fish duck ▸ Idioms related to fish duck ▸ Wikipedia articles (New!) ▸ Words that often appear near fish duck ▸ Rhymes of fish duck ▸ Invented words related to fish duck