birth defect

noun

: a physical or biochemical defect that is present at birth and may be inherited or environmentally induced

Examples of birth defect in a Sentence

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 goal is to decrease birth defects in children born to Hispanic women. Tori Apodaca, CBS News, 30 Dec. 2025 Alcohol also causes serious problems in non-drinkers, being a major factor in intimate partner violence, assault, child abuse, and birth defects. William J. Burman, Denver Post, 24 Dec. 2025 In late March, HHS slashed over 10,000 jobs, closed half its regional offices, and shuttered entire divisions, like those responsible for ensuring workplace safety standards, monitoring levels of environmental toxins, and supporting children with birth defects. Eli Cahan, Rolling Stone, 19 Dec. 2025 The grants supported initiatives targeted at reducing sudden infant deaths, improving teen and young adult health, preventing birth defects and identifying autism early, according to an academy spokesperson. Christian Orozco, NBC news, 18 Dec. 2025 See All Example Sentences for birth defect

Word History

First Known Use

circa 1864, in the meaning defined above

Time Traveler
The first known use of birth defect was circa 1864

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Cite this Entry

“Birth defect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/birth%20defect. Accessed 1 Jan. 2026.

Kids Definition

birth defect

noun
: a serious defect (as in physical or mental function) that is present at birth and is inherited or caused by something that happens or exists in the environment

Medical Definition

birth defect

noun
: a physical or biochemical defect (as cleft palate, phenylketonuria, or Down syndrome) that is present at birth and may be inherited or environmentally induced
Last Updated: - Updated example sentences
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