We found 21 dictionaries that define the word killer whale:

General (17 matching dictionaries)

1. killer whale: Longman Dictionary of Contemporary English
2. killer whale: Merriam-Webster
3. killer whale: Oxford Learner's Dictionaries
4. killer whale: American Heritage Dictionary of the English Language
5. killer whale: Collins English Dictionary
6. killer whale: Vocabulary.com
7. killer-whale, killer whale: Wordnik
8. killer whale: Cambridge Advanced Learner's Dictionary
9. killer whale: Wiktionary
10. killer whale: The Wordsmyth English Dictionary-Thesaurus
11. killer whale: Infoplease Dictionary
12. killer whale: Dictionary.com
13. Killer Whale (The Avengers), Killer Whale, Killer whale: Wikipedia, the Free Encyclopedia
14. killer whale: Rhymezone
15. killer whale: FreeDictionary.org
16. killer whale: Mnemonic Dictionary
17. killer whale: TheFreeDictionary.com

Computing (1 matching dictionary)

18. Whale, killer, killer whale: Encyclopedia

Medicine (2 matching dictionaries)

19. Medical Dictionary (No longer online)
20. killer whale: Medical dictionary

Slang (1 matching dictionary)

21. The Killer Whale, killer whale: Urban Dictionary

(Note: See killer_whales as well.)

Definitions from Wiktionary (killer whale) ▸ noun:  A sea mammal related to dolphins and porpoises (Orcinus orca). Similar: grampus, sea wolf, orca, killer, orcinus orca, sei whale, fin whale, black whale, whalefish, white whale, more... Opposite: dolphin, porpoise, pilot whale Phrases: false killer whale, Pygmy killer whale, Namu, the Killer Whale, killer whale attack, more... Adjectives: cetacean, brit, calver, smolt, cod, lythe, salmon, delphinine, leap, sprag, shallow ▸ Words similar to killer whale ▸ Usage examples for killer whale ▸ Idioms related to killer whale ▸ Wikipedia articles (New!) ▸ Words that often appear near killer whale ▸ Rhymes of killer whale ▸ Invented words related to killer whale