We found 16 dictionaries that define the word biological weapon:

General (12 matching dictionaries)

1. biological weapon: Merriam-Webster
2. biological weapon: Collins English Dictionary
3. biological weapon: Vocabulary.com
4. biological-weapon, biological weapon: Wiktionary
5. biological weapon: Dictionary.com
6. Biological weapon: Wikipedia, the Free Encyclopedia
7. biological weapon: Rhymezone
8. biological weapon: FreeDictionary.org
9. biological weapon: Mnemonic Dictionary
10. biological weapon: TheFreeDictionary.com

Computing (1 matching dictionary)

11. biological weapon: Encyclopedia

Medicine (2 matching dictionaries)

12. biological weapon: Merriam-Webster Medical Dictionary
13. biological weapon: Medical dictionary

Slang (1 matching dictionary)

14. biological weapon: Urban Dictionary

(Note: See biological_weapons as well.)

Definitions from Wiktionary (biological weapon) ▸ noun:  A biological pathogen or toxin designed or used for warfare. Similar: bioweapon, biothreat, biologicals, biopathogen, bioagent, bioterror, germ warfare, bioattack, biovector, select agent, more... Opposite: conventional weapon, traditional weapon Types: bacteria, viruses, toxins, rickettsiae, more... ▸ Words similar to biological weapon ▸ Usage examples for biological weapon ▸ Idioms related to biological weapon ▸ Wikipedia articles (New!) ▸ Words that often appear near biological weapon ▸ Rhymes of biological weapon ▸ Invented words related to biological weapon