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semiautomatic

[sem-ee-aw-tuh-mat-ik, sem-ahy-] /ˌsɛm iˌɔ təˈmæt ɪk, ˌsɛm aɪ-/
adjective
1.
partly automatic.
2.
(of a firearm) automatically ejecting the cartridge case of a fired shot and loading the next cartridge from the magazine but requiring a squeeze of the trigger to fire each individual shot.
noun
3.
a self-loading rifle or other firearm.
Origin of semiautomatic
1890-1895
1890-95; semi- + automatic
Related forms
semiautomatically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for semi-automatic
Contemporary Examples
Historical Examples
  • For work which is automatic or semi-automatic, boys or girls may be employed.

    A Rational Wages System Henry Atkinson
  • There was, he was afraid at the time, little more than enough mind left in his body to keep the semi-automatic functions going.

    Man of Many Minds E. Everett Evans
  • Few of these have been put into use, for the reason that a switchboard, like a human body, must be semi-automatic only.

    The History of the Telephone Herbert N. Casson
  • I have nowhere observed the use of any semi-automatic rifles, nor of either silencers or special sights for sharpshooters.

    The Note-Book of an Attache Eric Fisher Wood
  • They occupy a semi-automatic middle ground between conscious and subconscious activities.

    The Trained Memory Warren Hilton
British Dictionary definitions for semi-automatic

semiautomatic

/ˌsɛmɪˌɔːtəˈmætɪk/
adjective
1.
partly automatic
2.
(of a firearm) self-loading but firing only one shot at each pull of the trigger Compare automatic (sense 5)
noun
3.
a semiautomatic firearm
Derived Forms
semiautomatically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for semi-automatic
adj.

1853, from semi- + automatic (adj.). In reference to firearms, 1889.

Online Etymology Dictionary, © 2010 Douglas Harper
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Word Value for semi

6
7
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