- an ornamental tuft or ball of feathers, wool, or the like, used on hats, slippers, etc.
- pompon (def. 3).
- an automatic antiaircraft cannon.
- a ball of tufted silk, wool, feathers, etc, worn on a hat for decoration
- the small globelike flower head of certain cultivated varieties of dahlia and chrysanthemum
- (as modifier)
- an automatic rapid-firing, small-calibre cannon, esp a type of anti-aircraft cannon used in World War II
