We found 30 dictionaries that define the word extraneous:

General (25 matching dictionaries)

1. extraneous: Merriam-Webster.com
2. extraneous: Oxford Learner's Dictionaries
3. extraneous: American Heritage Dictionary of the English Language
4. extraneous: Collins English Dictionary
5. extraneous: Vocabulary.com
6. Extraneous, extraneous: Wordnik
7. extraneous: Cambridge Advanced Learner's Dictionary
8. extraneous: Wiktionary
9. extraneous: Webster's New World College Dictionary, 4th Ed.
10. extraneous: The Wordsmyth English Dictionary-Thesaurus
11. extraneous: Infoplease Dictionary
12. Extraneous, extraneous: Dictionary.com
13. extraneous: Online Etymology Dictionary
14. extraneous: Cambridge Essential American English Dictionary
15. Extraneous: Online Plain Text English Dictionary
16. extraneous: Webster's Revised Unabridged, 1913 Edition
17. extraneous: Rhymezone
18. Extraneous: AllWords.com Multi-Lingual Dictionary
19. extraneous: Webster's 1828 Dictionary
20. extraneous: Free Dictionary
21. extraneous: Mnemonic Dictionary
22. extraneous: Dictionary/thesaurus
23. extraneous: Wikimedia Commons US English Pronunciations

Business (1 matching dictionary)

24. extraneous: Legal dictionary

Computing (1 matching dictionary)

25. extraneous: Encyclopedia

Medicine (3 matching dictionaries)

26. Extraneous: MedFriendly Glossary
27. online medical dictionary (No longer online)
28. extraneous: Medical dictionary

(Note: See extraneously as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign. ▸ adjective:  Not essential or intrinsic. Similar: extrinsic, foreign, immaterial, irrelevant, impertinent, outside, adulterant, external, adulterating, strange, more... Opposite: relevant, pertinent, material, germane Types: relevant, irrelevant, red herring, ad hominem, ad populum, slippery slope, false dilemma, circular argument, more... Phrases: extraneous variable, extraneous root, Extraneous and missing solutions, extraneous circumstances, extraneous factors, more... ▸ Word origin ▸ Words similar to extraneous ▸ Usage examples for extraneous ▸ Idioms related to extraneous ▸ Wikipedia articles (New!) ▸ Popular nouns described by extraneous ▸ Words that often appear near extraneous ▸ Rhymes of extraneous ▸ Invented words related to extraneous