We found 24 dictionaries that define the word biohazard:

General (19 matching dictionaries)

1. biohazard: Merriam-Webster
2. biohazard: Oxford Learner's Dictionaries
3. biohazard: American Heritage Dictionary of the English Language
4. biohazard: Collins English Dictionary
5. biohazard: Vocabulary.com
6. Biohazard, biohazard: Wordnik
7. biohazard: Wiktionary
8. biohazard: Webster's New World College Dictionary, 4th Ed.
9. biohazard: The Wordsmyth English Dictionary-Thesaurus
10. biohazard: Infoplease Dictionary
11. biohazard: Dictionary.com
12. BioHazard (robot), BioHazard, Biohazard (album), Biohazard (band), Biohazard (book), Biohazard (disambiguation), Biohazard (film), Biohazard (franchise), Biohazard (video game), Biohazard: Wikipedia, the Free Encyclopedia
13. biohazard: Rhymezone
14. biohazard: FreeDictionary.org
15. biohazard: Mnemonic Dictionary
16. biohazard: TheFreeDictionary.com
17. biohazard: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

18. BioHazard (robot), biohazard: Encyclopedia

Medicine (3 matching dictionaries)

19. biohazard: Merriam-Webster Medical Dictionary
20. online medical dictionary (No longer online)
21. BioHazard (robot), biohazard: Medical dictionary

Slang (1 matching dictionary)

22. biohazard: Urban Dictionary

(Note: See biohazards as well.)

Definitions from Wiktionary ( ) ▸ noun:  A biological hazard; a source of risk due to some biological factor such as bacteria or human waste. Similar: biocontaminant, bioerror, biosecurity, biowaste, bioterrorism, biocontamination, biological warfare, biosafety, bioterrorist, bio-weapon, more... Opposite: safe, sterile, non-toxic, harmless Types: virus, bacteria, fungus, protozoa, parasite, toxin, poison, more... Phrases: biohazard symbol, biohazard suit, Biohazard 4D-Executer, more... Adjectives: potential, extreme, serious, possible, significant, red Colors:     yellow,     black,     orange,     red,     neon green, more... ▸ Words similar to biohazard ▸ Usage examples for biohazard ▸ Idioms related to biohazard ▸ Wikipedia articles (New!) ▸ Popular adjectives describing biohazard ▸ Words that often appear near biohazard ▸ Rhymes of biohazard ▸ Invented words related to biohazard