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We found 35 dictionaries with English definitions that include the word spiracle:
Click on the first link on a line below to go directly to a page where "spiracle" is defined.

General (29 matching dictionaries)

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

Computing (1 matching dictionary)

30. spiracle: Encyclopedia [home, info]

Medicine (2 matching dictionaries)

31. spiracle: online medical dictionary [home, info]
32. spiracle: Medical dictionary [home, info]

Science (3 matching dictionaries)

33. Spiracle: HYPP Zoology [home, info]
34. Spiracle: Glossary of Entomology [home, info]
35. spiracle: Natural History Terms [home, info]

(Note: See spiracular for more definitions.)

Quick definitions from WordNet (spiracle) ▸ noun:  a breathing orifice ▸ Also see spiracular ▸ Words similar to spiracle ▸ Usage examples for spiracle ▸ Popular adjectives describing spiracle ▸ Words that often appear near spiracle ▸ Rhymes of spiracle ▸ Invented words related to spiracle