risk factor

noun

: something that increases risk or susceptibility

Examples of risk factor in a Sentence

Age is one of the risk factors for this disease.
Recent Examples on the Web
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When part of a balanced diet (and a generally active lifestyle), such foods can help manage high levels of blood cholesterol, a major risk factor for heart disease and stroke. Kirsten Nunez, Martha Stewart, 17 May 2026 Miles-Novelo points out that the strongest predictor of gun violence is access to a firearm, for example, and the most significant risk factor for future aggressive behavior is a history of aggression. Lorena O’Neil, Rolling Stone, 11 May 2026 These Patients Are Already There Age is the clearest risk factor. Angela Haupt, Time, 7 May 2026 The tanning lamp rule, which was first proposed in 2015, focused on age as a specific risk factor. Los Angeles Times, 6 May 2026 See All Example Sentences for risk factor

Word History

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of risk factor was in 1907

Browse Nearby Words

Cite this Entry

“Risk factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/risk%20factor. Accessed 21 May. 2026.

Kids Definition

risk factor

noun
: something that increases the possibility that something bad will happen
cigarette smoking is a risk factor for lung cancer

Medical Definition

risk factor

noun
: something that increases risk or susceptibility
poorly controlled hypertension is a risk factor for coronary heart disease

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