- a condition, behavior, or other factor that increases risk: Smoking is a major risk factor for cancer; depression as a risk factor in suicide.
Origin of risk factor
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- med a factor, such as a habit or an environmental condition, that predisposes an individual to develop a particular disease