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.
Spicy Foods May Reduce Salt Cravings High salt intake is a major risk factor for high blood pressure. Colleen Doherty, Verywell Health, 3 Aug. 2026 Another risk factor, ironically, is rewilding—a conservation approach that aims to restore ecosystems to good health by reducing human interference. M. R. O’Connor, New Yorker, 1 Aug. 2026 Skin cancer is the most common cancer in the United States, and UV light is a risk factor for every type, including melanoma. Hanna Wickes, Fort Worth Star-Telegram, 30 July 2026 Skin cancer is the most common cancer in the United States, and UV light is a risk factor for all types, including melanoma. Hanna Wickes, Miami Herald, 30 July 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 11 Aug. 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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