A membrane of the middle ear that vibrates in response to sound waves; the tympanic membrane.
- ‘The ear canal is closed at its inner end by a thin diaphragm of stretched skin known as the eardrum or tympanic membrane, which vibrates as the air pressure changes.’
- ‘The surgeon will make a small hole in the eardrum and remove fluid from the middle ear using suction.’
- ‘When the eardrum vibrates, tiny bones within the middle ear transmit the sound signals to the inner ear.’
- ‘In some cases, a doctor may suggest inserting a tube through the eardrum to allow the middle ear to drain.’
- ‘These waves are channeled through the ear canal to hit the eardrum, causing vibrations.’
We take a look at several popular, though confusing, punctuation marks.