Pronunciation: (bom"bur-dēr', -bu-),[key] —n. 1. Mil.the member of a bombing plane crew who operates the bombsight and bomb-release mechanism.
Pronunciation: (bom"bur-dēr', -bu-, bom"bär-dyā'),[key]Trademark, Canadian. a snowmobilelike vehicle driven by an internal-combustion engine, equipped with caterpillar tracks at the rear, steered by skis at the front, and designed for travel over snow.