smoothbore

adjective

smooth·​bore ˈsmüt͟h-ˈbȯr How to pronounce smoothbore (audio)
Synonyms of smoothborenext
of a firearm
: having a barrel with an unrifled bore
smoothbore noun

Examples of smoothbore in a Sentence

Recent Examples on the Web
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In contrast to the smoothbore cannons on contemporary Western tanks, the L30 is rifled. David Axe, Forbes, 27 Mar. 2024 It was armed with a 115mm smoothbore cannon, capable of firing various ammunition types, including armor-piercing and high-explosive rounds. Sascha Brodsky, Popular Mechanics, 24 Mar. 2023

Word History

First Known Use

1754, in the meaning defined above

Time Traveler
The first known use of smoothbore was in 1754

Cite this Entry

“Smoothbore.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smoothbore. Accessed 5 Jul. 2026.

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