What is "eardrum"?

The eardrum, also known as the tympanic membrane, is a thin, cone-shaped membrane located in the middle ear. It separates the outer ear from the middle ear and plays a crucial role in the process of hearing. When sound waves enter the ear, they cause the eardrum to vibrate, which in turn transmits these vibrations to the bones of the middle ear, allowing sound to be amplified and transmitted further into the inner ear for processing.