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We found 40 dictionaries with English definitions that include the word perpendicular:
Click on the first link on a line below to go directly to a page where "perpendicular" is defined.

General (29 matching dictionaries)

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

Art (2 matching dictionaries)

28. perpendicular: ArtLex Lexicon of Visual Art Terminology [home, info]
29. PERPENDICULAR: The Britannia Lexicon (Middle Ages Glossary) [home, info]

Business (2 matching dictionaries)

30. Perpendicular: Construction Term Glossary [home, info]
31. PerPendicular: Abbreviations in shipping [home, info]

Computing (1 matching dictionary)

32. perpendicular: Encyclopedia [home, info]

Medicine (1 matching dictionary)

33. perpendicular: online medical dictionary [home, info]

Miscellaneous (1 matching dictionary)

34. Perpendicular: Castle Terms [home, info]

Science (3 matching dictionaries)

35. Perpendicular: Eric Weisstein's World of Mathematics [home, info]
36. perpendicular: MATH SPOKEN HERE! [home, info]
37. perpendicular, perpendicular, perpendicular: PlanetMath Encyclopedia [home, info]

Slang (1 matching dictionary)

38. Perpendicular: Urban Dictionary [home, info]

(Note: See perpendiculars for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (perpendicular) ▸ noun:  an extremely steep face ▸ noun:  a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting ▸ noun:  a straight line at right angles to another line ▸ noun:  a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point ▸ adjective:  intersecting at or forming right angles ("The axes are perpendicular to each other") ▸ adjective:  extremely steep ("The great perpendicular face of the cliff") ▸ adjective:  at right angles to the plane of the horizon or a base line ("Measure the perpendicular height") ▸ Also see perpendiculars ▸ Word origin ▸ Words similar to perpendicular ▸ Usage examples for perpendicular ▸ Popular adjectives describing perpendicular ▸ Popular nouns described by perpendicular ▸ Words that often appear near perpendicular ▸ Rhymes of perpendicular ▸ Invented words related to perpendicular