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We found 32 dictionaries with English definitions that include the word heartbeat:
Click on the first link on a line below to go directly to a page where "heartbeat" is defined.

General (24 matching dictionaries)

1. heartbeat: Merriam-Webster.com [home, info]
2. heartbeat: Oxford Learner's Dictionaries [home, info]
3. heartbeat: American Heritage Dictionary of the English Language [home, info]
4. heartbeat: Collins English Dictionary [home, info]
5. heartbeat: Vocabulary.com [home, info]
6. heartbeat: Macmillan Dictionary [home, info]
7. Heartbeat, heartbeat: Wordnik [home, info]
8. heartbeat: Cambridge Advanced Learner's Dictionary [home, info]
9. heartbeat: Wiktionary [home, info]
10. heartbeat: Webster's New World College Dictionary, 4th Ed. [home, info]
11. heartbeat: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. heartbeat: Infoplease Dictionary [home, info]
13. heartbeat: Dictionary.com [home, info]
14. heartbeat: UltraLingua English Dictionary [home, info]
15. heartbeat: Cambridge Dictionary of American English [home, info]
16. Heartbeat (2PM song), Heartbeat (Annie song), Heartbeat (BTS song), Heartbeat (Bad Boys Blue album), Heartbeat (Big Black single), Heartbeat (British TV series), Heartbeat (Buddy Holly song), Heartbeat (Can-linn song), Heartbeat (Carrie Underwood song), Heartbeat (Childish Gambino song), Heartbeat (Curtis Mayfield), Heartbeat (Curtis Mayfield album), Heartbeat (Da' T.R.U.T.H. album), Heartbeat (Don Johnson album), Heartbeat (Don Johnson song), Heartbeat (Enrique Iglesias song), Heartbeat (G.E.M. album), Heartbeat (Helen Reddy song), Heartbeat (Jasmine Rae album), Heartbeat (Jimmy Somerville song), Heartbeat (Justs song), Heartbeat (King Crimson song), Heartbeat (Late of the Pier song), Heartbeat (Nina Sky song), Heartbeat (Nneka song), Heartbeat (Sakamoto album), Heartbeat (Sarah Engels album), Heartbeat (Scouting for Girls song), Heartbeat (Steps song), Heartbeat (Taana Gardner song), Heartbeat (Tainai Kaiki II), Heartbeat (The Fray song), Heartbeat (The Oak Ridge Boys album), Heartbeat (UK TV Series), Heartbeat (UK TV series), Heartbeat (Wilkinson song), Heartbeat (Wire song), Heartbeat (company), Heartbeat (compilation album), Heartbeat (computing), Heartbeat (disambiguation), Heartbeat (program), Heartbeat (short film), Heartbeat, The Heartbeat: Wikipedia, the Free Encyclopedia [home, info]
17. heartbeat: Rhymezone [home, info]
18. heartbeat: Free Dictionary [home, info]
19. heartbeat: Mnemonic Dictionary [home, info]
20. heartbeat: WordNet 1.7 Vocabulary Helper [home, info]
21. heartbeat: LookWAYup Translating Dictionary/Thesaurus [home, info]
22. heartbeat: Dictionary/thesaurus [home, info]

Computing (2 matching dictionaries)

23. heartbeat: Free On-line Dictionary of Computing [home, info]
24. Heartbeat (disambiguation), Heartbeat (single), heartbeat: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

25. heartbeat: online medical dictionary [home, info]
26. Heartbeat (disambiguation), Heartbeat (single), heartbeat: Medical dictionary [home, info]
27. heartbeat: Hyperdictionary [home, info]

Miscellaneous (2 matching dictionaries)

28. Heartbeat: Brilliant Dream Dictionary [home, info]
29. heartbeat: Idioms [home, info]

Slang (1 matching dictionary)

30. heartbeat: Urban Dictionary [home, info]

(Note: See heartbeats for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (heartbeat) ▸ noun:  an animating or vital unifying force ("New York is the commercial heartbeat of America") ▸ noun:  the rhythmic contraction and expansion of the arteries with each beat of the heart ▸ noun:  a very short time (as the time it takes the eye blink or the heart to beat) ▸ Also see heartbeats ▸ Words similar to heartbeat ▸ Usage examples for heartbeat ▸ Idioms related to heartbeat (New!) ▸ Popular adjectives describing heartbeat ▸ Words that often appear near heartbeat ▸ Rhymes of heartbeat ▸ Invented words related to heartbeat