• Decibel: A unit used to measure intensity of a sound.
• Meniere's Disease: Disease of unknown cause affecting the membranous labyrinth of the ear, causing progressive Deafness, tinnitus and dizziness.
• Otoscope: An instrument designed for visual examination of eardrum and passage of the outer ear, typically having a light and a set of lenses.
• Otitis: Inflammation of the ear, usually distinguished as otitis externa (passage of outer ear), otitis media (middle ear), and otitis interna (inner ear).
• Mumps: A contagious and infectious viral disease causing swelling of parotid salivary glands in the face.
• Meningitis: Disease in which there is inflammation of meninges, caused by viral or bacterial infection, and marked by intense headache and fever, sensitivity to light, and muscular rigidity.
• Measles: An infectious viral disease causing fever and a red rash, typically occurring in childhood.