1. Decoration consisting of a ball of tufted wool or silk; usually worn on a hat
   "The winter hat was adorned with a fluffy pom-pom";
   - pompon
    
2. Artillery designed to shoot upward at airplanes
   "The military base was protected by pom-pom guns";
   - antiaircraft, antiaircraft gun, flak, flack, ack-ack [informal], ack-ack gun

Derived forms: pom-poms

Type of: adornment, gun

Encyclopedia: Pom-pom