Semi-trailer
r) the term "semi-trailer" means any trailer intended to be coupled to a vehicle in such a way that part of it rests on the vehicle, and the latter bears a significant portion of the mass of the semi-trailer and its cargo;
Source: "Convention on Road Traffic" (as amended on 28.09.2004) (together with "Technical Regulations relating to Vehicles and Trailers") (Concluded in Vienna on 08.11.1968) (as amended and supplemented on 03.03.1992)
SEMI-TRAILER - a single-, double- or multi-axle device without an engine, intended for the transportation of people, goods or equipment mounted thereon. A semi-trailer is towed by a motor vehicle using a support-coupling device
Source: "Methodological Recommendations on Conducting Independent Technical Expertise of a Vehicle in the Context of Compulsory Motor Third Party Liability Insurance (N 001МР/СЭ)" (approved by NIIAT Ministry of Transport of Russia 12.10.2004, RFCEC under the Ministry of Justice of Russia 20.10.2004, EKZ MVD of Russia 18.10.2004, NPSC "OTEC" 20.10.2004)