We found 13 dictionaries that define the word motorcycles:

General (9 matching dictionaries)

1. motorcycles: Merriam-Webster
2. motorcycles: Collins English Dictionary
3. motorcycles: Vocabulary.com
4. Motorcycles, motorcycle's, motorcycles: Wordnik
5. motorcycles: Cambridge Advanced Learner's Dictionary
6. motorcycles: Wiktionary
7. motorcycles: Dictionary.com
8. Motorcycles (film), Motorcycles: Wikipedia, the Free Encyclopedia
9. Motorcycles: TheFreeDictionary.com

Computing (1 matching dictionary)

10. Motorcycles: Encyclopedia

Medicine (2 matching dictionaries)

11. Medical Dictionary (No longer online)
12. online medical dictionary (No longer online)

Sports (1 matching dictionary)

13. Motorcycles: Sports Definitions

(Note: See motorcycle as well.)

Definitions from Wikipedia (Motorcycles) ▸ noun:  a 1949 Czech drama film directed by Martin Frič. Opposite: cars, trucks, bicycles, scooters, mopeds Types: Harley-Davidson, Yamaha, Honda, Suzuki, Kawasaki, KTM, BMW, Triumph, more... Phrases: Triumph Motorcycles Ltd, Types of motorcycles, Kawasaki motorcycles, Husqvarna Motorcycles, BSA motorcycles, more... ▸ Words similar to motorcycles ▸ Usage examples for motorcycles ▸ Idioms related to motorcycles ▸ Wikipedia articles (New!) ▸ Popular adjectives describing motorcycles ▸ Words that often appear near motorcycles ▸ Rhymes of motorcycles ▸ Invented words related to motorcycles