We found 30 dictionaries that define the word ornithology:

General (27 matching dictionaries)

1. ornithology: Longman Dictionary of Contemporary English
2. ornithology: Merriam-Webster
3. ornithology: Oxford Learner's Dictionaries
4. ornithology: American Heritage Dictionary of the English Language
5. ornithology: Collins English Dictionary
6. ornithology: Vocabulary.com
7. Ornithology, ornithology: Wordnik
8. ornithology: Cambridge Advanced Learner's Dictionary
9. ornithology: Wiktionary
10. ornithology: Webster's New World College Dictionary, 4th Ed.
11. ornithology: The Wordsmyth English Dictionary-Thesaurus
12. ornithology: Infoplease Dictionary
13. ornithology: Dictionary.com
14. ornithology: Cambridge Essential American English Dictionary
15. Ornithology (composition), Ornithology: Wikipedia, the Free Encyclopedia
16. Ornithology: Online Plain Text English Dictionary
17. ornithology: Webster's Revised Unabridged, 1913 Edition
18. ornithology: Rhymezone
19. Ornithology: AllWords.com Multi-Lingual Dictionary
20. ornithology: Webster's 1828 Dictionary
21. Ornithology: E Cobham Brewer, The Reader's Handbook
22. ornithology: FreeDictionary.org
23. ornithology: The Phrontistery - A Dictionary of Obscure Words
24. ornithology: Mnemonic Dictionary
25. ornithology: TheFreeDictionary.com

Computing (1 matching dictionary)

26. ornithology: Encyclopedia

Medicine (1 matching dictionary)

27. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

28. ornithology: A Word A Day

(Note: See ornithologic as well.)

Definitions from Wiktionary ( ) ▸ noun:  The branch of zoology that deals with the scientific study of birds. Similar: birdlore, ornithogeography, oology, ethnoornithology, caliology, oölogy, pterylography, pterylology, zoology, ethology, more... Opposite: mammalogy, herpetology, ichthyology Phrases: Cornell Lab of Ornithology, ornithology adjective, more... Adjectives: american, current, economic, british, scientific, modern, systematic, australian, indian, neotropical, north ▸ Words similar to ornithology ▸ Usage examples for ornithology ▸ Idioms related to ornithology ▸ Wikipedia articles (New!) ▸ Popular adjectives describing ornithology ▸ Words that often appear near ornithology ▸ Rhymes of ornithology ▸ Invented words related to ornithology