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Noun: earplug  'eer,plúg
  1. An earphone that is inserted into the ear canal
     
  2. A plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise

Derived forms: earplugs

Type of: earphone, earpiece, headphone, phone, plug, stopper, stopple

Encyclopedia: Earplug