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 (sĕm′ē-trā′lər, sĕm′ī-)
A trailer having a set or several sets of wheels at the rear only, with the forward portion being supported by the truck tractor or towing vehicle.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Automotive Engineering) a type of trailer or articulated lorry that has wheels only at the rear, the front end being supported by the towing vehicle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsɛm ɪˌtreɪ lər)

a detachable trailer for hauling freight, with wheels at the rear end and the forward end supported by a tractor.
Also called semi.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.semitrailer - a trailer having wheels only in the rear; the front is supported by the towing vehicle
trailer - a large transport conveyance designed to be pulled by a truck or tractor
articulated lorry, tractor trailer, trailer truck, trucking rig, rig, semi - a truck consisting of a tractor and trailer together
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Slovenian haulage company Eurodinamika has added five new MAN TGX 18.500 semitrailer tractors to its fleet.
Their preliminary investigation indicates Shambora was driving his Toyota Camry on the ramp when he drove off the roadway and struck the rear of the semitrailer truck, which was parked on the right shoulder.
Opting for the distinctive looking MAN TGX 18.500 semitrailer tractors with an XXL cab was an unequivocal decision, according to Mr Hilmo Batlak, Director of Eurodinamika: Both the drivers and the company management were in favour of MAN, because happy drivers are a prerequisite for the success of the company.
The National Transportation Safety Board has issued its preliminary report for its ongoing investigation of the fatal, March 1, 2019, highway crash near Delray Beach, Florida that involved a 2018 Tesla Model 3 vehicle and an International truck-tractor in combination with a semitrailer. The report states: "According to surveillance video in the area and forward-facing video from the Tesla, the combination vehicle slowed as it crossed the southbound lanes, blocking the Tesla's path.
Snow-related crashed snarled highways across southern Michigan, with one person killed when a semitrailer struck the rear of a car stopped in traffic on U.S.
Eck and French (2002) introduced the wheelbase and wheel angles of tractor and semitrailer to the equation of side friction factor to estimate the required additional superelevation for the tractor-semitrailer at the low radius [7].
Forty-eight people were traveling on the bus when it slammed into a semitrailer near the Bavarian town of ME-nchberg early Monday, DW reported.
German heavy moving specialist Goldhofer has introduced the STZ-VP (285), the latest addition to its STZ-VP family of semitrailers. The new model owes its name to the new 285mm tyres and is the lowloader semitrailer with the highest load-carrying capacity from the house of Goldhofer.
proposed optimal linear quadratic control algorithm to improve the yaw stability of a tractor semitrailer using active semitrailer steering [28].
A semitrailer crashed Tuesday on Minnesota Highway 139, 1 mile south of Harmony, after the driver lost control on the icy road and crashed into the ditch.