R
Receiver – The name for the tiny speaker inside the hearing aid.
Residual hearing – The amount of measurable, usable hearing left to a person with a hearing loss.
Rubella – A viral infection characterized by fever and a skin rash resembling measles. If a pregnant woman gets Rubella it may result in sensorineural hearing loss in the unborn child.
Ruptured eardrum – Very loud noises, sudden changes in air pressure, infection, or foreign objects can tear the eardrum. The small hole usually heals within a few weeks.