We found 30 dictionaries that define the word risk factor:

General (7 matching dictionaries)

1. risk factor: Merriam-Webster
2. risk factor: Collins English Dictionary
3. risk-factor: Wordnik
4. risk factor: Dictionary.com
5. Risk factor (computing), Risk factor (criminology), Risk factor (disambiguation), Risk factor (finance), Risk factor: Wikipedia, the Free Encyclopedia
6. risk factor: TheFreeDictionary.com
7. risk factor: Wiktionary

Business (4 matching dictionaries)

8. MoneyGlossary.com (No longer online)
9. risk factor: Legal dictionary
10. Risk Factor, Risk-factor: Financial dictionary
11. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

12. risk factor: Encyclopedia

Medicine (17 matching dictionaries)

13. risk factor: Merriam-Webster Medical Dictionary
14. Dorland's Illustrated Medical Dictionary (No longer online)
15. Risk factor: MedTerms.com Medical Dictionary
16. Breast Cancer Talking Dictionary (No longer online)
17. online medical dictionary (No longer online)
18. Cancer Glossary (No longer online)
19. GASTROLAB Digestive Dictionary (No longer online)
20. Hepatitis C Information Central (No longer online)
21. Allergy Glossary (No longer online)
22. Diabetes Dictionary (No longer online)
23. Risk Factor: Glossary of Medical Education Terms
24. Risk factor: Breast Cancer Glossary of Medical Terms
25. risk factor: Dictionary of Cancer Terms
26. RISK FACTOR: Vocabulary of Loss: Suicide, Grief, and Ethics
27. Risk-factor, risk factor: Medical dictionary
28. Risk factor: Drug Medical Dictionary
29. Hyperdictionary (No longer online)

Slang (1 matching dictionary)

30. Risk Factor: Urban Dictionary

Definitions from Wiktionary (risk factor) ▸ noun:  Something that increases risk or susceptibility. ▸ noun:  (medicine) A variable associated with an increased risk of a medical condition. Opposite: protective factor Types: physical, psychological, environmental, genetic, behavioral, more... ▸ Words similar to risk factor ▸ Usage examples for risk factor ▸ Idioms related to risk factor ▸ Wikipedia articles (New!) ▸ Words that often appear near risk factor ▸ Rhymes of risk factor ▸ Invented words related to risk factor