| Subject | English | Arabic |
| environ. | aircraft engine emission The formation and discharge of gaseous and particulate pollutants into the environment, especially the stratosphere, chiefly from airplanes, helicopters and other high-altitude aircrafts | انبعاثات محركات الطائرات |
| comp., MS | engine adapter | محول المشغل (An adapter that performs various core biometric operations: cleanup of sensor data, feature extraction, template generation, matching, and indexing. These functions can either be implemented by software in the engine adapter, or by the engine adapter making use of some piece of processing hardware) |
| water.res. | engine company | الشركة المصنعة للمحرك |