[haf-trak, hahf-] 
| 1. | a caterpillar tread that runs over and under the rear or driving wheels of a vehicle but is not connected with the forward wheels: used esp. on military vehicles. |
| 2. | a motor vehicle with rear driving wheels on caterpillar treads. |
| 3. | Military. an armored vehicle equipped with half-tracks. |
| half track | |
noun | |
| 1. | a motor vehicle propelled by half tracks; frequently used by the military |
| 2. | a track that goes around only rear wheels |