sudden infant death syndrome

noun

: death of an apparently healthy infant usually before one year of age that is of unknown cause and occurs especially during sleep
abbreviation SIDS

called also crib death

Examples of sudden infant death syndrome in a Sentence

Recent Examples on the Web
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Mark your calendar October is awareness month for eye injury prevention, healthy lungs, ADHD, breast cancer, dental hygiene, Down syndrome, spina bifida, sudden cardiac arrest and sudden infant death syndrome. Scott Lafee, San Diego Union-Tribune, 7 Oct. 2025 Compared to formula, breastfeeding is linked to a lower risk of sudden infant death syndrome, lower rates of infections and hospitalizations and a lower risk of developing diabetes later in life. Ann Kellams, The Conversation, 2 Oct. 2025 The Hollister Police Department and the San Benito County Sheriff’s Office have opened a joint investigation, which will explore all possible causes of death, including criminal negligence and sudden infant death syndrome, or SIDS, police said. Jason Green, Mercury News, 27 Sep. 2025 The former couple's firstborn, Scott, died from sudden infant death syndrome (SIDS) at 2 ½ months old. Tommy McArdle, PEOPLE, 16 Sep. 2025 See All Example Sentences for sudden infant death syndrome

Word History

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of sudden infant death syndrome was in 1969

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Cite this Entry

“Sudden infant death syndrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sudden%20infant%20death%20syndrome. Accessed 18 Oct. 2025.

Medical Definition

sudden infant death syndrome

noun
: death of an apparently healthy infant usually before one year of age that is of unknown cause and occurs especially during sleep
abbreviation SIDS

called also cot death, crib death

More from Merriam-Webster on sudden infant death syndrome

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