We found 22 dictionaries that define the word FFT:

General (7 matching dictionaries)

1. FFT: Merriam-Webster
2. fft: Wordnik
3. FFT: Wiktionary
4. FFT: Dictionary.com
5. FFT (disambiguation), FFT, Fft: Wikipedia, the Free Encyclopedia
6. FFT: Stammtisch Beau Fleuve Acronyms
7. FFT: Merriam-Webster

Computing (5 matching dictionaries)

8. FFT: Free On-line Dictionary of Computing
9. FFT: CCI Computer
10. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
11. FFT: Dictionary of Algorithms and Data Structures
12. FFT: Encyclopedia

Medicine (1 matching dictionary)

13. online medical dictionary (No longer online)

Miscellaneous (3 matching dictionaries)

14. Ka-BOOM! Comicbook Words on Historical Principles (No longer online)
15. FFT: Acronym Finder
16. AbbreviationZ (No longer online)

Science (2 matching dictionaries)

17. FFT: Eric Weisstein's World of Mathematics
18. FFT: Extragalactic Astronomy

Slang (1 matching dictionary)

19. FFT, fft: Urban Dictionary

Tech (3 matching dictionaries)

20. Glossary of Meteorology (No longer online)
21. Schlumberger Oilfield Glossary (No longer online)
22. Rane Professional Audio Reference (No longer online)

Definitions from Wiktionary (FFT) ▸ noun:  (signal processing) Initialism of fast Fourier transform. [A member of a certain family of algorithms for efficiently computing the discrete Fourier transform of data.] Similar: ifft, DFT, transform, computation, compute, dimensional, forward, Algorithms, parallel, signal, more... Opposite: ifft Phrases: fft algorithm, fft mot, Prime-factor FFT algorithm, more... Adjectives: point, dimensional, complex, parallel, time, forward, single, real, conventional, complete, standard ▸ Words similar to FFT ▸ Usage examples for FFT ▸ Idioms related to FFT ▸ Wikipedia articles (New!) ▸ Popular adjectives describing FFT ▸ Words that often appear near FFT ▸ Rhymes of FFT ▸ Invented words related to FFT