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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Of all Early On evaluation referrals, 60% involve a communication delay, which is a risk factor for language failure, said Hamp, and hurting future reading readiness. Beki San Martin, Freep.com, 2 Mar. 2026 Ultimately, the prosecutors pulled back on their request to reduce Epstein’s status and New York judges refused to lower Epstein’s risk factor. Julie K. Brown, Miami Herald, 26 Feb. 2026 But there’s another powerful risk factor behind nearly every chronic disease. Andrew S. Brack, Time, 26 Feb. 2026 Hypertension—a form of high blood pressure that is an early risk factor of heart disease—could spike, according to the projections. Lauren J. Young, Scientific American, 25 Feb. 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 12 Mar. 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

More from Merriam-Webster on risk factor

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