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We found 36 dictionaries with English definitions that include the word tetrad:
Click on the first link on a line below to go directly to a page where "tetrad" is defined.

General (24 matching dictionaries)

1. tetrad: Oxford Learner's Dictionaries [home, info]
2. tetrad: American Heritage Dictionary of the English Language [home, info]
3. tetrad: Collins English Dictionary [home, info]
4. tetrad: Vocabulary.com [home, info]
5. Tetrad, tetrad: Wordnik [home, info]
6. tetrad: Wiktionary [home, info]
7. tetrad: Webster's New World College Dictionary, 4th Ed. [home, info]
8. tetrad: The Wordsmyth English Dictionary-Thesaurus [home, info]
9. tetrad: Infoplease Dictionary [home, info]
10. tetrad: Dictionary.com [home, info]
11. Tetrad (Greek philosophy), Tetrad (area), Tetrad (astronomy), Tetrad (chromosomal formation), Tetrad (computing), Tetrad (disambiguation), Tetrad (general relativity), Tetrad (genetics), Tetrad (index notation), Tetrad (meiosis), Tetrad (music), Tetrad (symbol), Tetrad (unit of area), Tetrad: Wikipedia, the Free Encyclopedia [home, info]
12. Tetrad: Online Plain Text English Dictionary [home, info]
13. tetrad: Webster's Revised Unabridged, 1913 Edition [home, info]
14. Tetrad: Rhymezone [home, info]
15. Tetrad: AllWords.com Multi-Lingual Dictionary [home, info]
16. tetrad: Webster's 1828 Dictionary [home, info]
17. tetrad: Hutchinson's Dictionary of Difficult Words [home, info]
18. tetrad: Free Dictionary [home, info]
19. tetrad: Hutchinson Dictionaries [home, info]
20. tetrad: Mnemonic Dictionary [home, info]
21. tetrad: WordNet 1.7 Vocabulary Helper [home, info]
22. tetrad: LookWAYup Translating Dictionary/Thesaurus [home, info]
23. tetrad: Dictionary/thesaurus [home, info]
24. tetrad: Merriam-Webster.com [home, info]

Computing (1 matching dictionary)

25. Tetrad (genetics), tetrad: Encyclopedia [home, info]

Medicine (4 matching dictionaries)

26. tetrad: online medical dictionary [home, info]
27. Tetrad: Hypermedia Glossary Of Genetic Terms [home, info]
28. Tetrad: Microbial Genetics Glossary [home, info]
29. tetrad: Medical dictionary [home, info]

Science (6 matching dictionaries)

30. Tetrad: Bird On! [home, info]
31. Tetrad: Eric Weisstein's World of Mathematics [home, info]
32. tetrad: Botanical Terms [home, info]
33. tetrad: Bryological [home, info]
34. tetrad: Flora of New South Wales [home, info]
35. tetrad [1], tetrad [2]: How Many? A Dictionary of Units of Measurement [home, info]

Slang (1 matching dictionary)

36. Tetrad: Urban Dictionary [home, info]

(Note: See tetrads for more definitions.)

Quick definitions from WordNet (Tetrad) ▸ noun:  the cardinal number that is the sum of three and one ▸ Also see tetrads ▸ Words similar to tetrad ▸ Usage examples for tetrad ▸ Idioms related to tetrad (New!) ▸ Popular adjectives describing tetrad ▸ Words that often appear near tetrad ▸ Rhymes of tetrad ▸ Invented words related to tetrad