1. an amphibious tracked vehicle used by military forces for transporting troops and equipment from ships to shore
Usage: military

Examples

• The Marines loaded into the amtrac for the beach assault.
• Several amtracs moved through the surf toward the landing zone.
• The amtrac’s tracks allowed it to travel on both water and land.
• Military engineers designed the amtrac for amphibious operations.
• The crew operated the amtrac during the training exercise.