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

General (32 matching dictionaries)

1. louse: Merriam-Webster.com [home, info]
2. louse: Oxford Learner's Dictionaries [home, info]
3. louse: American Heritage Dictionary of the English Language [home, info]
4. louse: Collins English Dictionary [home, info]
5. louse: Vocabulary.com [home, info]
6. louse, louse: Macmillan Dictionary [home, info]
7. Louse, louse: Wordnik [home, info]
8. louse: Cambridge Advanced Learner's Dictionary [home, info]
9. louse: Wiktionary [home, info]
10. louse: Webster's New World College Dictionary, 4th Ed. [home, info]
11. louse: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. louse: Infoplease Dictionary [home, info]
13. louse: Dictionary.com [home, info]
14. louse: Online Etymology Dictionary [home, info]
15. louse: UltraLingua English Dictionary [home, info]
16. louse: Cambridge Dictionary of American English [home, info]
17. Louse (disambiguation), Louse: Wikipedia, the Free Encyclopedia [home, info]
18. louse: Cambridge International Dictionary of Phrasal Verbs [home, info]
19. Louse: Online Plain Text English Dictionary [home, info]
20. louse: Webster's Revised Unabridged, 1913 Edition [home, info]
21. louse: Rhymezone [home, info]
22. Louse: AllWords.com Multi-Lingual Dictionary [home, info]
23. louse: Webster's 1828 Dictionary [home, info]
24. Louse: Encarta® Online Encyclopedia, North American Edition [home, info]
25. Louse: 1911 edition of the Encyclopedia Britannica [home, info]
26. louse: Free Dictionary [home, info]
27. louse: Mnemonic Dictionary [home, info]
28. louse: WordNet 1.7 Vocabulary Helper [home, info]
29. louse: LookWAYup Translating Dictionary/Thesaurus [home, info]
30. louse: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

31. louse: Encyclopedia [home, info]

Medicine (2 matching dictionaries)

32. louse: online medical dictionary [home, info]
33. louse: Medical dictionary [home, info]

Miscellaneous (2 matching dictionaries)

34. Louse: Brilliant Dream Dictionary [home, info]
35. louse: Idioms [home, info]

Science (1 matching dictionary)

36. louse: LITTLE EXPLORERS(TM) Picture Dictionary [home, info]

Slang (2 matching dictionaries)

37. louse: English slang and colloquialisms used in the United Kingdom [home, info]
38. Louse: Urban Dictionary [home, info]

(Note: See lousing for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (louse) ▸ noun:  wingless usually flattened blood-sucking insect parasitic on warm-blooded animals ▸ noun:  any of several small insects especially aphids that feed by sucking the juices from plants ▸ noun:  a person who has a nasty or unethical character undeserving of respect ▸ noun:  wingless insect with mouth parts adapted for biting; mostly parasitic on birds ▸ Also see lousing ▸ Word origin ▸ Words similar to louse ▸ Usage examples for louse ▸ Idioms related to louse (New!) ▸ Popular adjectives describing louse ▸ Words that often appear near louse ▸ Rhymes of louse ▸ Invented words related to louse