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.
The tanning lamp rule, which was first proposed in 2015, focused on age as a specific risk factor. Los Angeles Times, 6 May 2026 While researchers don’t fully understand the mechanism, smoking is the strongest modifiable risk factor. Emily Cegielski, Flow Space, 6 May 2026 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 Although often underappreciated, depression is associated with a comparable, and sometimes higher, risk for dementia than cardiovascular health, which has has long been considered a key modifiable risk factor. Eric J. Nestler, STAT, 28 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 12 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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