We found 26 dictionaries that define the word aerobics:

General (22 matching dictionaries)

1. aerobics: Merriam-Webster
2. aerobics: Oxford Learner's Dictionaries
3. aerobics: American Heritage Dictionary of the English Language
4. aerobics: Collins English Dictionary
5. aerobics: Vocabulary.com
6. Aerobics, aerobics: Wordnik
7. aerobics: Cambridge Advanced Learner's Dictionary
8. aerobics: Wiktionary
9. aerobics: The Wordsmyth English Dictionary-Thesaurus
10. aerobics: Infoplease Dictionary
11. aerobics: Dictionary.com
12. aerobics: Cambridge Essential American English Dictionary
13. Aerobics: Wikipedia, the Free Encyclopedia
14. aerobics: Rhymezone
15. aerobics, aerobics: AllWords.com Multi-Lingual Dictionary
16. aerobics: FreeDictionary.org
17. aerobics: Mnemonic Dictionary
18. aerobics: TheFreeDictionary.com
19. aerobics: Longman Dictionary of Contemporary English
20. aerobics: Merriam-Webster

Business (1 matching dictionary)

21. Glossary of Spa Terms (No longer online)

Computing (1 matching dictionary)

22. aerobics: Encyclopedia

Medicine (2 matching dictionaries)

23. aerobics: Merriam-Webster Medical Dictionary
24. aerobics: Medical dictionary

(Note: See aerobic as well.)

Definitions from Wiktionary ( ) ▸ noun:  A form of exercise, designed to enhance one's cardiovascular fitness, normally performed to music. Similar: Aerobic exercise, water aerobics, boxercise, aqua aerobics, aerocombat, aquatic fitness, anaerobics, cardioacceleration, jazzercise, cardio, more... Opposite: anaerobic, anaerobic exercise Types: Zumba, Pilates, yoga, kickboxing, tae bo, step aerobics, water aerobics, dance, more... Phrases: water aerobics, step aerobics, aqua aerobics, high-impact aerobics, high impact aerobics, more... Adjectives: active, low, new, mental, high, light, daily, regular, aquatic, vigorous, step ▸ Words similar to aerobics ▸ Usage examples for aerobics ▸ Idioms related to aerobics ▸ Wikipedia articles (New!) ▸ Popular adjectives describing aerobics ▸ Words that often appear near aerobics ▸ Rhymes of aerobics ▸ Invented words related to aerobics