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.
Recurring UTIs are common for women in midlife during perimenopause and menopause as the decline of estrogen becomes a key risk factor. Alexa Mikhail, Flow Space, 14 Apr. 2026 Higher levels of intermuscular fat are a risk factor for knee osteoarthritis, Link said. Kaitlin Sullivan, NBC news, 14 Apr. 2026 Kefir has also gained popularity as a functional food for its potential ability to help lower blood pressure, a major risk factor for heart disease. Anna Giorgi, Verywell Health, 14 Apr. 2026 May Protect Against Heart Disease Some evidence suggests that kombucha may reduce hyperlipidemia (high cholesterol), a significant risk factor for heart disease and stroke. Mikayla Morell, Health, 13 Apr. 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 22 Apr. 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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