WordWeb Online

1. [informal] The sense organ for hearing and equilibrium
   - ear, lug [Brit, informal], lughole [Brit, informal]
    
2. A hole (as in a helmet) for sound to reach the ears

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, napper [Brit, informal], nob [informal], noggin [informal], noodle [informal], nut [informal], skull [informal], vestibular apparatus, vestibular system