Medical Dictionary Terms E E ear canal: A tube leading from the eardrum to the outer ear. eardrum: A thin membrane separating the ear canal and middle ear. earwax: A substance that lubricates… Read more

Medical Dictionary Terms V V vaccination: A method of protecting the body against disease by injecting parts or all of a microorganism that will cause the body to develop antibodies against… Read more

Medical Dictionary Terms F F facet joints: Paired joints that link a vertebra to its neighboring vertebrae. They allow the spine to move as a unit. facet rhizotomy: Surgical destruction of certain… Read more

Medical Dictionary Terms W W wall stress: Force on the wall of the heart muscle caused by pressure inside the heart’s pumping chamber; excessive wall stress can impair the heart’s ability… Read more

Medical Dictionary Terms G G gain: A hearing aid’s power, measured in the number of decibels that it can add to sound. gait cycle: The cycle that the feet and legs make… Read more