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We found 19 dictionaries with English definitions that include the word dioptase:
Click on the first link on a line below to go directly to a page where "dioptase" is defined.

General (16 matching dictionaries)

1. dioptase: Merriam-Webster.com [home, info]
2. dioptase: Oxford Learner's Dictionaries [home, info]
3. dioptase: Collins English Dictionary [home, info]
4. dioptase: Wordnik [home, info]
5. dioptase: Wiktionary [home, info]
6. dioptase: Webster's New World College Dictionary, 4th Ed. [home, info]
7. dioptase: Infoplease Dictionary [home, info]
8. Dioptase, dioptase: Dictionary.com [home, info]
9. Dioptase: Wikipedia, the Free Encyclopedia [home, info]
10. Dioptase: Online Plain Text English Dictionary [home, info]
11. dioptase: Webster's Revised Unabridged, 1913 Edition [home, info]
12. Dioptase: AllWords.com Multi-Lingual Dictionary [home, info]
13. dioptase: Webster's 1828 Dictionary [home, info]
14. Dioptase: 1911 edition of the Encyclopedia Britannica [home, info]
15. dioptase: Free Dictionary [home, info]
16. dioptase: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

17. dioptase: Encyclopedia [home, info]

Medicine (1 matching dictionary)

18. dioptase: online medical dictionary [home, info]

Science (1 matching dictionary)

19. DIOPTASE: The Mineral Gallery [home, info]

Quick definitions from Wiktionary (dioptase) ▸ noun:  An intense emerald-green to bluish-green copper cyclosilicate mineral. ▸ Words similar to dioptase ▸ Usage examples for dioptase ▸ Idioms related to dioptase (New!) ▸ Popular adjectives describing dioptase ▸ Words that often appear near dioptase ▸ Rhymes of dioptase ▸ Invented words related to dioptase