semiautomatic

adjective

semi·​au·​to·​mat·​ic ˌse-mē-ˌȯ-tə-ˈma-tik How to pronounce semiautomatic (audio)
ˌse-ˌmī-,
-mi-
: 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
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But the court continues to sit on petitions challenging Rhode Island’s high-capacity magazine ban and Maryland’s semiautomatic weapon ban. SIDEBAR The saga of Trump’s hush money criminal case isn’t over yet. Zach Schonfeld, The Hill, 23 Apr. 2025 Weeks after the interaction, on Feb. 16, a Sig Sauer P320 semiautomatic handgun equipped with a silencer belonging to Nathan was used to kill Mary, her father David Ponzer and neighbor Andrew Ferrin, deputies say. Grethel Aguila, Miami Herald, 17 Apr. 2025 And Hale acquired another firearm – a semiautomatic pistol. Ray Sanchez, CNN Money, 5 Apr. 2025 The House was set to vote on the bill — which would require a background check and a training course to buy certain semiautomatic weapons — in the afternoon. The Denver Post, Denver Post, 29 Mar. 2025 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 8 May. 2025.

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