We found 23 dictionaries that define the word hyperventilate:

General (18 matching dictionaries)

1. hyperventilate: Merriam-Webster
2. hyperventilate, hyperventilate: Oxford Learner's Dictionaries
3. hyperventilate: American Heritage Dictionary of the English Language
4. hyperventilate: Collins English Dictionary
5. hyperventilate: Vocabulary.com
6. hyperventilate: Wordnik
7. hyperventilate: Cambridge Advanced Learner's Dictionary
8. hyperventilate: Wiktionary
9. hyperventilate: Infoplease Dictionary
10. hyperventilate: Dictionary.com
11. hyperventilate: Cambridge Essential American English Dictionary
12. hyperventilate: Rhymezone
13. hyperventilate: FreeDictionary.org
14. hyperventilate: Mnemonic Dictionary
15. hyperventilate: TheFreeDictionary.com
16. hyperventilate: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

17. hyperventilate: Encyclopedia

Medicine (3 matching dictionaries)

18. hyperventilate: Merriam-Webster Medical Dictionary
19. online medical dictionary (No longer online)
20. hyperventilate: Medical dictionary

Slang (1 matching dictionary)

21. hyperventilate: Urban Dictionary

(Note: See hyperventilates as well.)

Definitions from Wiktionary ( ) ▸ verb:  (intransitive) To breathe quickly and deeply, especially at an abnormally rapid rate. Similar: overbreathe, gasp, inhale, pant, huff, throttle, blow, velocitize, breathe, aspirate, more... Opposite: hypoventilate ▸ Words similar to hyperventilate ▸ Usage examples for hyperventilate ▸ Idioms related to hyperventilate ▸ Wikipedia articles (New!) ▸ Words that often appear near hyperventilate ▸ Rhymes of hyperventilate ▸ Invented words related to hyperventilate