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We found 30 dictionaries with English definitions that include the word mach number:
Click on the first link on a line below to go directly to a page where "mach number" is defined.

General (20 matching dictionaries)

1. Mach number: Merriam-Webster.com [home, info]
2. Mach number: Oxford Dictionaries [home, info]
3. Mach number: American Heritage Dictionary of the English Language [home, info]
4. Mach number: Collins English Dictionary [home, info]
5. Mach number: Vocabulary.com [home, info]
6. Mach number: Wordnik [home, info]
7. Mach number: Wiktionary [home, info]
8. Mach number: The Wordsmyth English Dictionary-Thesaurus [home, info]
9. mach number: Infoplease Dictionary [home, info]
10. Mach number: Dictionary.com [home, info]
11. Mach number: UltraLingua English Dictionary [home, info]
12. Mach number: Wikipedia, the Free Encyclopedia [home, info]
13. Mach number: Rhymezone [home, info]
14. Mach number: Hutchinson's Dictionary of Difficult Words [home, info]
15. mach number: Free Dictionary [home, info]
16. Mach number: Hutchinson Dictionaries [home, info]
17. mach number: Mnemonic Dictionary [home, info]
18. mach number: WordNet 1.7 Vocabulary Helper [home, info]
19. Mach number: LookWAYup Translating Dictionary/Thesaurus [home, info]
20. Mach number: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

21. Mach number: Encyclopedia [home, info]

Medicine (1 matching dictionary)

22. Mach number: online medical dictionary [home, info]

Miscellaneous (1 matching dictionary)

23. Mach number: Wordcraft Dictionary [home, info]

Science (2 matching dictionaries)

24. Mach Number: Eric Weisstein's World of Physics [home, info]
25. Mach Number: Extragalactic Astronomy [home, info]

Tech (5 matching dictionaries)

26. mach number: DOD Dictionary of Military Terms [home, info]
27. Mach number: Glossary of Meteorology [home, info]
28. Mach number: PUMP AND SEAL TERMS [home, info]
29. Mach number: Dictionary for Avionics [home, info]
30. MACH NUMBER: Space and Electronic Warfare Lexicon [home, info]

(Note: See mach_numbers for more definitions.)

Quick definitions from WordNet (Mach number) ▸ noun:  the ratio of the speed of a moving body to the speed of sound ▸ Also see mach_numbers ▸ Words similar to mach number ▸ Usage examples for mach number ▸ Words that often appear near mach number ▸ Rhymes of mach number ▸ Invented words related to mach number