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We found 39 dictionaries with English definitions that include the word quaternary:
Click on the first link on a line below to go directly to a page where "quaternary" is defined.

General (28 matching dictionaries)

1. quaternary: Merriam-Webster.com [home, info]
2. Quaternary, quaternary, quaternary: Oxford Dictionaries [home, info]
3. quaternary: American Heritage Dictionary of the English Language [home, info]
4. quaternary, the Quaternary: Collins English Dictionary [home, info]
5. Quaternary, quaternary: Vocabulary.com [home, info]
6. Quaternary, quaternary: Wordnik [home, info]
7. Quaternary, quaternary: Wiktionary [home, info]
8. quaternary: Webster's New World College Dictionary, 4th Ed. [home, info]
9. quaternary: The Wordsmyth English Dictionary-Thesaurus [home, info]
10. quaternary: Infoplease Dictionary [home, info]
11. quaternary: Dictionary.com [home, info]
12. quaternary: Online Etymology Dictionary [home, info]
13. Quaternary, quaternary: UltraLingua English Dictionary [home, info]
14. Quaternary (EP), Quaternary (disambiguation), Quaternary: Wikipedia, the Free Encyclopedia [home, info]
15. Quaternary: Online Plain Text English Dictionary [home, info]
16. quaternary: Webster's Revised Unabridged, 1913 Edition [home, info]
17. Quaternary: Rhymezone [home, info]
18. Quaternary: AllWords.com Multi-Lingual Dictionary [home, info]
19. quaternary: Webster's 1828 Dictionary [home, info]
20. quaternary: Hutchinson's Dictionary of Difficult Words [home, info]
21. Quaternary: 1911 edition of the Encyclopedia Britannica [home, info]
22. quaternary: Free Dictionary [home, info]
23. quaternary: Hutchinson Dictionaries [home, info]
24. quaternary: Mnemonic Dictionary [home, info]
25. quaternary: WordNet 1.7 Vocabulary Helper [home, info]
26. Quaternary, quaternary: LookWAYup Translating Dictionary/Thesaurus [home, info]
27. quaternary, the Quaternary: Dictionary/thesaurus [home, info]
28. quaternary: Wikimedia Commons US English Pronunciations [home, info]

Computing (1 matching dictionary)

29. Quaternary, the Quaternary: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

30. quaternary: online medical dictionary [home, info]
31. Quaternary: Hepatitis C Information Central [home, info]
32. quaternary, the Quaternary: Medical dictionary [home, info]

Science (5 matching dictionaries)

33. Quaternary: Archaeology Wordsmith [home, info]
34. Quaternary: Earthquake Image Glossary [home, info]
35. Quaternary: Eric Weisstein's World of Mathematics [home, info]
36. Quaternary: USGS Paleontology Glossary of Terms [home, info]
37. Quaternary: Atmospheric Chemistry and Air Quality [home, info]

Slang (1 matching dictionary)

38. quaternary: Urban Dictionary [home, info]

Tech (1 matching dictionary)

39. quaternary: Rane Professional Audio Reference [home, info]

(Note: See quaternaries for more definitions.)

Quick definitions from WordNet (Quaternary) ▸ noun:  last 2 million years ▸ noun:  the cardinal number that is the sum of three and one ▸ adjective:  consisting of or especially arranged in sets of four ("A quaternary compound") ▸ adjective:  coming next after the third and just before the fifth in position or time or degree or magnitude ("The quaternary period of geologic time extends from the end of the tertiary period to the present") ▸ Also see quaternaries ▸ Word origin ▸ Words similar to quaternary ▸ Usage examples for quaternary ▸ Popular adjectives describing quaternary ▸ Popular nouns described by quaternary ▸ Words that often appear near quaternary ▸ Rhymes of quaternary ▸ Invented words related to quaternary