follow Dictionary.com

How Well Do You Know English Slang?

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
1890-1895
1890-95; semi- + automatic
Related forms
semiautomatically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
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
Cite This Source
Word Origin and History for semi-automatic
adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for semiautomatic

Many English speakers likely know this word

Word Value for semi

6
7
Scrabble Words With Friends

Quotes with semi-automatic