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

General (27 matching dictionaries)

1. operculum: Merriam-Webster.com [home, info]
2. operculum: Oxford Learner's Dictionaries [home, info]
3. operculum: American Heritage Dictionary of the English Language [home, info]
4. operculum: Collins English Dictionary [home, info]
5. operculum: Vocabulary.com [home, info]
6. operculum: Wordnik [home, info]
7. Operculum, Operculum: InfoVisual Visual Dictionary [home, info]
8. operculum: Wiktionary [home, info]
9. operculum: Webster's New World College Dictionary, 4th Ed. [home, info]
10. operculum: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. operculum: Infoplease Dictionary [home, info]
12. operculum: Dictionary.com [home, info]
13. operculum: UltraLingua English Dictionary [home, info]
14. Operculum (animal), Operculum (bird), Operculum (botany), Operculum (brain), Operculum (bryozoa), Operculum (dentistry), Operculum (fish), Operculum (gastropod), Operculum: Wikipedia, the Free Encyclopedia [home, info]
15. Operculum: Online Plain Text English Dictionary [home, info]
16. operculum: Webster's Revised Unabridged, 1913 Edition [home, info]
17. operculum: Rhymezone [home, info]
18. Operculum: AllWords.com Multi-Lingual Dictionary [home, info]
19. operculum: Hutchinson's Dictionary of Difficult Words [home, info]
20. operculum: Free Dictionary [home, info]
21. operculum: Hutchinson Dictionaries [home, info]
22. operculum: The Phrontistery - A Dictionary of Obscure Words [home, info]
23. operculum: Luciferous Logolepsy [home, info]
24. operculum: Mnemonic Dictionary [home, info]
25. operculum: WordNet 1.7 Vocabulary Helper [home, info]
26. operculum: LookWAYup Translating Dictionary/Thesaurus [home, info]
27. operculum: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

28. Operculum (gastropod), operculum: Encyclopedia [home, info]

Medicine (2 matching dictionaries)

29. operculum: online medical dictionary [home, info]
30. operculum: Medical dictionary [home, info]

Miscellaneous (1 matching dictionary)

31. operculum: Wordcraft Dictionary [home, info]

Science (5 matching dictionaries)

32. operculum: Botanical Terms [home, info]
33. operculum: Bryological [home, info]
34. operculum (calyptra): Flora of New South Wales [home, info]
35. Operculum: The Orchid Lady's Illustrated Orchid Encyclopedia [home, info]
36. Operculum: Fishkeeping glossary [home, info]

(Note: See operculums for more definitions.)

Quick definitions from WordNet (operculum) ▸ noun:  a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted ▸ Also see operculums ▸ Words similar to operculum ▸ Usage examples for operculum ▸ Idioms related to operculum (New!) ▸ Popular adjectives describing operculum ▸ Words that often appear near operculum ▸ Rhymes of operculum ▸ Invented words related to operculum