a condition, behavior, or other factor that increases risk: Smoking is a major risk factor for cancer; depression as a risk factor in suicide.
Words nearby risk factor
Origin of risk factor
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for risk factor
med a factor, such as a habit or an environmental condition, that predisposes an individual to develop a particular disease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012