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.
Low-fiber diets are associated with chronic constipation, which is a major risk factor for developing hemorrhoids in the first place. Sarah Garone, Health, 30 Apr. 2026 Early-life psychiatric illness is a significant, modifiable risk factor for later-life neurodegenerative disorders. Eric J. Nestler, STAT, 28 Apr. 2026 Weight is another modifiable risk factor to consider when looking to support brain and overall health. Sara Moniuszko, USA Today, 27 Apr. 2026 One meta-analysis found that a vitamin D deficiency is a risk factor for insomnia. Carrie Madormo, Verywell Health, 23 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 6 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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