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We found 55 dictionaries with English definitions that include the word opacity:
Click on the first link on a line below to go directly to a page where "opacity" is defined.

General dictionaries General (31 matching dictionaries)
  1. opacity: Merriam-Webster.com [home, info]
  2. opacity: Oxford Learner's Dictionaries [home, info]
  3. opacity: American Heritage Dictionary of the English Language [home, info]
  4. opacity: Collins English Dictionary [home, info]
  5. opacity: Vocabulary.com [home, info]
  6. opacity: Macmillan Dictionary [home, info]
  7. Opacity, opacity: Wordnik [home, info]
  8. opacity: Cambridge Advanced Learner's Dictionary [home, info]
  9. opacity: Wiktionary [home, info]
  10. opacity: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. opacity: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. opacity: Infoplease Dictionary [home, info]
  13. opacity: Dictionary.com [home, info]
  14. opacity: Online Etymology Dictionary [home, info]
  15. opacity: UltraLingua English Dictionary [home, info]
  16. Opacity (album), Opacity (optics), Opacity: Wikipedia, the Free Encyclopedia [home, info]
  17. Opacity: Online Plain Text English Dictionary [home, info]
  18. opacity: Webster's Revised Unabridged, 1913 Edition [home, info]
  19. opacity: Rhymezone [home, info]
  20. Opacity: AllWords.com Multi-Lingual Dictionary [home, info]
  21. opacity: Webster's 1828 Dictionary [home, info]
  22. opacity: Stammtisch Beau Fleuve Acronyms [home, info]
  23. opacity: Hutchinson's Dictionary of Difficult Words [home, info]
  24. opacity: Free Dictionary [home, info]
  25. opacity: Hutchinson Dictionaries [home, info]
  26. opacity: Mnemonic Dictionary [home, info]
  27. opacity: WordNet 1.7 Vocabulary Helper [home, info]
  28. opacity: LookWAYup Translating Dictionary/Thesaurus [home, info]
  29. opacity: Dictionary/thesaurus [home, info]

Art dictionaries Art (5 matching dictionaries)
  1. opacity: ArtLex Lexicon of Visual Art Terminology [home, info]
  2. Opacity: Health & Beauty Glossary [home, info]
  3. Opacity: Glossary of Binary Graphics [home, info]
  4. Opacity: English-Chinese Dictionary of Graphic Communications (Big 5) [home, info]
  5. opacity: ODLIS: Online Dictionary of Library and Information Science [home, info]

Business dictionaries Business (2 matching dictionaries)
  1. Opacity: Construction Term Glossary [home, info]
  2. opacity: Legal dictionary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. opacity: Encyclopedia [home, info]

Medicine dictionaries Medicine (2 matching dictionaries)
  1. opacity: online medical dictionary [home, info]
  2. opacity: Medical dictionary [home, info]

Science dictionaries Science (4 matching dictionaries)
  1. Opacity: Eric Weisstein's World of Physics [home, info]
  2. opacity: Imagine the Universe! Dictionary [home, info]
  3. Opacity: Extragalactic Astronomy [home, info]
  4. Opacity: Atmospheric Chemistry and Air Quality [home, info]

Tech dictionaries Tech (10 matching dictionaries)
  1. opacity: High-Energy Astrophysics [home, info]
  2. opacity: Book Binding [home, info]
  3. Opacity: Glossary of Air Pollution Terms [home, info]
  4. Opacity: AUTOMOTIVE TERMS [home, info]
  5. Opacity: Glossary of Paper Terms [home, info]
  6. opacity: Glossary of Meteorology [home, info]
  7. OPACITY: Glossary of Common Hearth and Heating Terms [home, info]
  8. Opacity: Beauty & Health Glossary [home, info]
  9. Opacity: Paper Making [home, info]
  10. Opacity: PhotoNotes Dictionary of Film and Digital Photography [home, info]

(Note: See opacities for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (opacity)

noun:  the quality of being opaque to a degree; the degree to which something reduces the passage of light
noun:  incomprehensibility resulting from obscurity of meaning
noun:  the phenomenon of not permitting the passage of electromagnetic radiation

▸ Also see opacities
Word origin

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Phrases that include opacity:   corneal opacity, ground-glass opacity, ground glass opacity, nodular opacity, opacity condition, more...

Words similar to opacity:   opacities, opaqueness, more...

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