1. large trailers without front wheels that are designed to be pulled by a truck tractor, with the front end supported by the tractor
Usage: plural of semitrailer

Examples

• The shipping company ordered twenty new semitrailers for long-distance freight transport.
• Semitrailers lined the loading dock waiting to be attached to truck tractors.
• The highway was congested with semitrailers carrying goods across the country.
• Loading semitrailers requires specialized equipment and trained personnel.
• The warehouse can accommodate up to fifty semitrailers at one time.
• Refrigerated semitrailers are essential for transporting perishable goods.