We found 26 dictionaries that define the word pestiferous:

General (21 matching dictionaries)

1. pestiferous: Merriam-Webster
2. pestiferous: Oxford Learner's Dictionaries
3. pestiferous: American Heritage Dictionary of the English Language
4. pestiferous: Collins English Dictionary
5. pestiferous: Vocabulary.com
6. pestiferous: Wordnik
7. pestiferous: Wiktionary
8. pestiferous: Webster's New World College Dictionary, 4th Ed.
9. pestiferous: The Wordsmyth English Dictionary-Thesaurus
10. pestiferous: Infoplease Dictionary
11. pestiferous: Dictionary.com
12. pestiferous: Online Etymology Dictionary
13. Pestiferous: Online Plain Text English Dictionary
14. pestiferous: Webster's Revised Unabridged, 1913 Edition
15. pestiferous: Rhymezone
16. Pestiferous: AllWords.com Multi-Lingual Dictionary
17. pestiferous: Webster's 1828 Dictionary
18. pestiferous: FreeDictionary.org
19. pestiferous: The Phrontistery - A Dictionary of Obscure Words
20. pestiferous: Mnemonic Dictionary
21. pestiferous: TheFreeDictionary.com

Business (1 matching dictionary)

22. pestiferous: Legal dictionary

Computing (1 matching dictionary)

23. pestiferous: Encyclopedia

Medicine (3 matching dictionaries)

24. pestiferous: Merriam-Webster Medical Dictionary
25. online medical dictionary (No longer online)
26. pestiferous: Medical dictionary

(Note: See pestiferously as well.)

Definitions from Wiktionary (pestiferous) ▸ adjective:  containing organisms that cause contagious diseases ▸ adjective:  annoying, vexatious Similar: irritating, nettlesome, plaguy, vexatious, vexing, annoying, plaguey, pesky, bothersome, galling, more... Opposite: beneficial, harmless, innocuous Types: mosquito, cockroach, flea, tick, louse, bedbug, more... ▸ Word origin ▸ Words similar to pestiferous ▸ Usage examples for pestiferous ▸ Idioms related to pestiferous ▸ Wikipedia articles (New!) ▸ Popular nouns described by pestiferous ▸ Words that often appear near pestiferous ▸ Rhymes of pestiferous ▸ Invented words related to pestiferous