1
: the killing of an infant
2
[Late Latin infanticida, from Latin infant-, infans + -i- + -cida -cide] : one who kills an infant

Examples of infanticide in a Sentence

Recent Examples on the Web
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This case has awakened debates about infanticide laws, which provide legal defenses only to mothers who kill their infant. Dr. Susan Hatters Friedman, Hartford Courant, 23 Aug. 2026 Postpartum psychosis is associated with an elevated risk of infanticide; some reviews have estimated that as many as 4% of affected mothers may kill their infant. Ayana Lage, Vogue, 12 Aug. 2026 Postpartum Support International states that 4% of postpartum psychosis sufferers commit infanticide, and 5% die by suicide. Charles Trepany, USA Today, 30 July 2026 Democrats argued such cases are already covered by Missouri law on infanticide, and that the bill is a solution to an issue that doesn’t occur. Jack Harvel, Kansas City Star, 14 July 2026 See All Example Sentences for infanticide

Word History

Etymology

Late Latin infanticidium, from Latin infant-, infans + -i- + -cidium -cide

First Known Use

1611, in the meaning defined at sense 1

Time Traveler
The first known use of infanticide was in 1611

Browse Nearby Words

Cite this Entry

“Infanticide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infanticide. Accessed 28 Aug. 2026.

Medical Definition

infanticide

noun
1
: the killing of an infant
2
: one who kills an infant

Legal Definition

infanticide

noun
: the killing of a newly or recently born child

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