We found 45 dictionaries that define the word millimeter:

General (23 matching dictionaries)

1. millimeter: Merriam-Webster
2. millimeter: Oxford Learner's Dictionaries
3. millimeter: American Heritage Dictionary of the English Language
4. millimeter: Collins English Dictionary
5. millimeter: Vocabulary.com
6. Millimeter, millimeter: Wordnik
7. millimeter: Cambridge Advanced Learner's Dictionary
8. millimeter: Wiktionary
9. millimeter: Webster's New World College Dictionary, 4th Ed.
10. millimeter: The Wordsmyth English Dictionary-Thesaurus
11. millimeter: Infoplease Dictionary
12. millimeter: Dictionary.com
13. millimeter: Cambridge Essential American English Dictionary
14. Millimeter: Wikipedia, the Free Encyclopedia
15. Millimeter: Online Plain Text English Dictionary
16. millimeter: Rhymezone
17. Millimeter: AllWords.com Multi-Lingual Dictionary
18. millimeter: Webster's 1828 Dictionary
19. millimeter: FreeDictionary.org
20. millimeter: Mnemonic Dictionary
21. millimeter: TheFreeDictionary.com

Art (2 matching dictionaries)

22. millimeter: ArtLex Lexicon of Visual Art Terminology
23. Glossary of Stamp Collecting Terms (No longer online)

Business (3 matching dictionaries)

24. Construction Term Glossary (No longer online)
25. millimeter: Financial dictionary
26. BusinessDictionary.com (No longer online)

Computing (2 matching dictionaries)

27. millimeter: CCI Computer
28. millimeter: Encyclopedia

Medicine (6 matching dictionaries)

29. millimeter: Merriam-Webster Medical Dictionary
30. Dorland's Illustrated Medical Dictionary (No longer online)
31. Breast Cancer Talking Dictionary (No longer online)
32. millimeter: Dictionary of Cancer Terms
33. millimeter: Medical dictionary
34. Hyperdictionary (No longer online)

Miscellaneous (1 matching dictionary)

35. Navajo Code Talkers' Dictionary (No longer online)

Science (4 matching dictionaries)

36. Electrochemistry Dictionary (No longer online)
37. Millimeter: Eric Weisstein's World of Physics
38. millimeter: MATH SPOKEN HERE!
39. How Many? A Dictionary of Units of Measurement (No longer online)

Tech (4 matching dictionaries)

40. millimeter: Webster's New World Telecom Dictionary
41. AUTOMOTIVE TERMS (No longer online)
42. Basics of Space Flight Glossary (No longer online)
43. Rane Professional Audio Reference (No longer online)

(Note: See millimeters as well.)

Definitions from Wiktionary ( ) ▸ noun:  US spelling of millimetre [An SI/MKS unit of measure, the length of ¹⁄₁₀₀₀ of a metre. Symbol: mm] Similar: millimetre, MM, centimeter, inch, millimetric, micrometre, centimetre, micrometer, micron, nanometer, more... Opposite: centimeter, centimetre Types: micrometer, nanometer, picometer, more... Phrases: cubic millimeter, millimeter wave, square millimeter, millimeter band, millimeter of mercury, more... Adjectives: cubic, nine, nearest, square, half, five, sub, top, extra, eight, scant ▸ Words similar to millimeter ▸ Usage examples for millimeter ▸ Idioms related to millimeter ▸ Wikipedia articles (New!) ▸ Popular adjectives describing millimeter ▸ Words that often appear near millimeter ▸ Rhymes of millimeter ▸ Invented words related to millimeter