semiautomatic

adjective

semi·​au·​to·​mat·​ic ˌse-mē-ˌȯ-tə-ˈma-tik How to pronounce semiautomatic (audio)
ˌse-ˌmī-
-mi-
Synonyms of semiautomaticnext
: not fully automatic: such as
a
: operated partly automatically and partly by hand
b
of a firearm : able to fire repeatedly through an automatic reloading process but requiring release and another pressure of the trigger for each successive shot
a semiautomatic rifle
semiautomatic noun
semiautomatically adverb

Examples of semiautomatic 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.
Last year, his office opposed a measure that would’ve significantly limited the sale of semiautomatic rifles. Seth Klamann, Denver Post, 30 Mar. 2026 Republicans are against proposals backed by the DFL including a a ban on semiautomatic rifles with features like pistol-grips and detachable magazines, often described as assault weapons, as well as limiting magazine capacity to 10 rounds. Alex Derosier, Twin Cities, 27 Mar. 2026 From the operation, the defense ministry said officials found a semiautomatic rifle and a magazine with 30 cartridges in the area of operations, which wasn’t disclosed in prior announcements. Eduardo Cuevas, USA Today, 27 Mar. 2026 Oakland Police Department The searches also yielded six dirt bikes, one vehicle, two semiautomatic pistols and an assault rifle. Tim Fang, CBS News, 26 Mar. 2026 See All Example Sentences for semiautomatic

Word History

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of semiautomatic was in 1853

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Cite this Entry

“Semiautomatic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semiautomatic. Accessed 2 Apr. 2026.

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