We found 14 dictionaries that define the word bulk mail:

General (12 matching dictionaries)

1. bulk mail: Merriam-Webster
2. bulk mail: Oxford Learner's Dictionaries
3. bulk mail: Vocabulary.com
4. bulk mail: Infoplease Dictionary
5. bulk-mail, bulk mail: Dictionary.com
6. Bulk mail: Wikipedia, the Free Encyclopedia
7. bulk mail: Rhymezone
8. bulk mail: FreeDictionary.org
9. bulk mail: Mnemonic Dictionary
10. bulk mail: TheFreeDictionary.com
11. bulk mail, Bulk mail: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

12. Glossary of Stamp Collecting Terms (No longer online)

Business (1 matching dictionary)

13. Travel Industry Dictionary (No longer online)

(Note: See bulk_mailing as well.)

Definitions from Wikipedia (Bulk mail) ▸ noun:  Bulk mail broadly refers to mail that is mailed and processed in bulk at reduced rates. Opposite: first-class mail, priority mail, individual mail Types: direct mail, junk mail, spam, more... ▸ Words similar to bulk mail ▸ Usage examples for bulk mail ▸ Idioms related to bulk mail ▸ Wikipedia articles (New!) ▸ Words that often appear near bulk mail ▸ Rhymes of bulk mail ▸ Invented words related to bulk mail