'gumshield' definitions:

Definition of 'gumshield'

From: WordNet
noun
(especially boxing) equipment that protects an athlete's mouth [syn: mouthpiece, gumshield]

Definition of 'gumshield'

From: GCIDE
  • gumshield \gumshield\ n. (Sport) A piece of athletic equipment that protects an athlete's mouth.
  • Syn: mouthpiece. [WordNet 1.5]