We found 7 dictionaries that define the word infectious agents:

General (2 matching dictionaries)

1. infectious agents: Vocabulary.com
2. Infectious agents: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)

3. Infectious agents: Encyclopedia

Medicine (3 matching dictionaries)

4. Health and Wellness Dictionary (No longer online)
5. National Immunization Program Glossary (No longer online)
6. Infectious agents: Medical dictionary

Tech (1 matching dictionary)

7. Washington State Definitions and Abbreviations of Vetrinary Terms (No longer online)

(Note: See infectious_agent as well.)

Definitions from Wiktionary (infectious agent) ▸ noun:  Synonym of pathogen ▸ Also see infectious_agent ▸ Words similar to infectious agents ▸ Usage examples for infectious agents ▸ Idioms related to infectious agents ▸ Wikipedia articles (New!) ▸ Words that often appear near infectious agents ▸ Rhymes of infectious agents ▸ Invented words related to infectious agents