1. A hole (as in a helmet) for sound to reach the ears
   "The football helmet had earholes to allow the player to hear signals"
    
2. [informal] The sense organ for hearing and equilibrium
   "He cupped his hand around his earhole to hear better";
   - ear, lughole [Brit, informal], lug [Brit, informal]

Derived forms: earholes

Type of: hole, receptor, sense organ, sensory receptor

Part of: auditory system, bean [informal], bonce [Brit, informal], caput [technical], dome [informal], head, melon [informal], napper [Brit, informal], nob [informal], noggin [informal], noodle [informal], nut [informal], skull [informal], vestibular apparatus, vestibular system