n. an ornamental ball or tuft of wool, feathers, or other fluffy material used as a decoration on clothing such as hats and slippers. [ PJC ]

2. a pompon. [ PJC ]

n. [ Imitative. ] (Mil.) originally, a Vickers-Maxim one-pounder automatic machine cannon using metallic ammunition fed from a lopped belt attached to the gun; -- popularly so called from its peculiar drumming sound in action. More recently, the term is applied mostly to automatic antiaircraft cannons. [ Webster 1913 Suppl. +PJC ]

n. a female cheerleader, especially one who waves a pompon{ 5 } while performing a cheering routine. [ PJC ]