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.
And although stalking is a risk factor for crimes of violence and homicide, the behavior is often misunderstood or downplayed in the legal system, Pohl and Beathard said. Shelly Bradbury, Denver Post, 13 Oct. 2025 By the end of that time, participants’ VO2 max had improved and their cardiac stiffness—a major risk factor for cardiovascular events—was down. Caroline Tien, SELF, 8 Oct. 2025 Our findings, published in the Journal of Health Economics, show that minor physical health conditions like mild seasonal allergies, previously thought not to be an immediate trigger of suicide, are indeed a risk factor. Shooshan Danagoulian, The Conversation, 8 Oct. 2025 Women under 60 years old were the least likely to have at least one risk factor — but even in this group, more than 95 percent of participants did, the study found. Tom Gavin, EverydayHealth.com, 2 Oct. 2025 See All Example Sentences for risk factor

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of risk factor was in 1949

Browse Nearby Words

Cite this Entry

“Risk factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/risk%20factor. Accessed 17 Oct. 2025.

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

Last Updated: - Updated example sentences
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