Definition and background:
German term for the tenor and bass members of the shawm family. [Fr.] Bombarde; [Ger.] Bombard; [It.] Bombardo. A brilliant sounding reed stop on the pipe organ.
For more information on the music term "Bombard" check out these other resources:
Wikipedia - Glossary of Musical Terminology
Virginia Tech Multimedia Music Dictionary
ORB -- Medieval Music Glossary