semi·​trail·​er | \ ˈse-ˌmī-ˌtrā-lər How to pronounce semitrailer (audio) , ˈse-mē-, -mi-\

Definition of semitrailer

1 : a freight trailer that when attached is supported at its forward end by the fifth wheel device of the truck tractor
2 : a trucking rig made up of a tractor and a semitrailer

Examples of semitrailer in a Sentence

Recent Examples on the Web

The semitrailer, like the first, burst into flames. Char Adams,, "Truck Driver Dies Trying to Avoid Fiery Wisconsin Pileup: He's 'a Hero' for 'Risking His Life'," 20 June 2019 A half-dozen Washington residents have already volunteered possible resting places for the giant mammals, which can be as long as a semitrailer and weigh up to 45 tons. New York Times, "A Beached Whale Needs Somewhere to Rot. How About Your Place?," 17 June 2019 Corry, 51, represents Rogel Lazaro Aguilera-Mederos, the Texas truck driver charged with 36 felonies for crashing his runaway semitrailer into stopped traffic April 25. Sam Tabachnik, The Denver Post, "Robert Corry, lawyer for suspect charged in deadly I-70 crash, arrested in domestic violence case," 15 June 2019 Three Aurora residents were killed in a rollover traffic crash involving a semitrailer truck Friday night outside of St. Louis, according to the Missouri Highway Patrol. Linda Girardi, Aurora Beacon-News, "Three Aurora residents killed in crash outside St. Louis," 9 June 2019 According to the group, side underride guards like this could reduce fatalities and serious injuries with semitrailers by 90 percent. Clifford Atiyeh, Car and Driver, "Yes, Autopilot Was On in the Tesla Model 3 Crash in March, NTSB Report Confirms," 16 May 2019 In Wisconsin, where the unemployment rate was 2.9% in July, about 20 current inmates build semitrailers for Stoughton Trailers LLC through a state work-release program to hire prisoners. Kris Maher, WSJ, "In Tight Labor Market, Inmates Learn to Code," 28 Aug. 2018 The semitrailer hauling cement dust was hit once in its trailer. Brady Mccombs, Fox News, "Shot hits Utah bus with passengers aboard, no one hurt," 27 Aug. 2018 The strictly manual transmission is disappearing from the cabs of semitrailer trucks — and the strong economy is one reason why. Adam Belz, The Seattle Times, "Semis, the last bastion of stick shifts, are going automated," 10 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'semitrailer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of semitrailer

1919, in the meaning defined at sense 1

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Statistics for semitrailer

Last Updated

6 Jul 2019

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Time Traveler for semitrailer

The first known use of semitrailer was in 1919

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More Definitions for semitrailer



English Language Learners Definition of semitrailer

: a long trailer that has wheels at the rear and is attached at its forward end to a large truck
: a large truck with a long trailer attached to the back of it

More from Merriam-Webster on semitrailer

Rhyming Dictionary: Words that rhyme with semitrailer Encyclopedia article about semitrailer

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