Pom"-pom` (?), n. [Imitative.] 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. Sometimes, any of other similar automatic cannons.

Pom"-pom` (?), n. [Imitative.] 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. Sometimes, any of other similar automatic cannons.