blue baby

noun

: an infant with cyanosis usually from a congenital heart defect in which venous and arterial blood are mingled

Examples of blue baby 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 actress wore a gray sweat set with a blue baby carrier across her chest that holds Emerson. Emma Aerin Becker, People.com, 4 Oct. 2024 The actress wears a gray sweat set with a blue baby carrier across her chest that holds Emerson. Emma Aerin Becker, Peoplemag, 16 Sep. 2024 The costume designer wore a light blue baby doll dress adorned with an oversized butter-yellow bow. Anna Kaufman, USA Today, 17 Nov. 2025 Ingesting too many nitrates can cause health issues like cancer or blue baby syndrome, low oxygen levels in infants. ABC News, 1 Apr. 2026 See All Example Sentences for blue baby

Word History

First Known Use

1858, in the meaning defined above

Time Traveler
The first known use of blue baby was in 1858

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Cite this Entry

“Blue baby.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blue%20baby. Accessed 7 Jul. 2026.

Kids Definition

blue baby

noun
: an infant with a bluish tint usually from a defect of the heart

Medical Definition

blue baby

noun
: an infant with a bluish tint usually from a congenital heart defect marked by mingling of venous and arterial blood
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