pom-pom /ˈpɑmˌpɑm/
Pom·pom, Pom-pom n. 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.
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pom-pom
n 1: decoration consisting of a ball of tufted wool or silk;
usually worn on a hat [syn: pompon]
2: artillery designed to shoot upward at airplanes [syn: antiaircraft,
antiaircraft gun, flak, flack, ack-ack, ack-ack
gun]