1
: any of a family (Boidae) of large snakes that kill by constriction and that includes the boa constrictor, anaconda, and python
2
: a long fluffy scarf

Examples of boa in a Sentence

Recent Examples on the Web
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Her strapless gown also touted a plunging neckline with subtle boning, teamed with a massive feather boa for added drama. Charlotte Phillipp, People.com, 7 July 2025 The boa appears well cared for, Animal Services employees said in their post. Harriet Ramos, Fort Worth Star-Telegram, 29 Apr. 2025 Though the platforms became the star of the show, other parts of Campbell’s ensemble, which included a bright pink feather boa and a Scottish inspired kilt, were also made famous by the fall. Rosa Rahimi, CNN Money, 19 June 2025 Between each eye and nostril sits a deep pit organ — more advanced than anything found in boas or pythons. Scott Travers, Forbes.com, 25 Apr. 2025 See All Example Sentences for boa

Word History

Etymology

Latin, a water snake

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of boa was in the 14th century

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Cite this Entry

“Boa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boa. Accessed 29 Jul. 2025.

Kids Definition

boa

noun
1
: any of various large snakes (as the boa constrictor, anaconda, or python) that crushes its prey
2
: a long fluffy scarf of fur, feathers, or fabric

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