We found 14 dictionaries that define the word tampered:

General (11 matching dictionaries)

1. tampered: Merriam-Webster
2. tampered: Collins English Dictionary
3. tampered: Vocabulary.com
4. Tampered, tampered: Wordnik
5. tampered: Wiktionary
6. tampered: Dictionary.com
7. tampered: Cambridge Essential American English Dictionary
8. Tampered: Online Plain Text English Dictionary
9. Tampered: AllWords.com Multi-Lingual Dictionary
10. tampered: FreeDictionary.org
11. tampered: TheFreeDictionary.com

Business (2 matching dictionaries)

12. tampered: Merriam-Webster Legal Dictionary
13. tampered: Legal dictionary

Computing (1 matching dictionary)

14. tampered: Encyclopedia

(Note: See tamper as well.)

Definitions from Wiktionary (tampered) ▸ adjective:  Having had an unauthorized change. Opposite: untouched, unaltered, unspoiled, pristine, intact Phrases: tampered with, not tampered with, more... Colors:     red,     black,     gray,     dark blue,     brown, more... ▸ Words similar to tampered ▸ Usage examples for tampered ▸ Idioms related to tampered ▸ Wikipedia articles (New!) ▸ Popular nouns described by tampered ▸ Words that often appear near tampered ▸ Rhymes of tampered ▸ Invented words related to tampered