concha

noun
  1. A shell-shaped structure, especially in the ear; the deepest depression of the external ear leading to the ear canal. noun
    The doctor examined the concha to check for any signs of infection.
    The concha plays a crucial role in directing sound waves into the ear canal.
  2. In architecture, a semicircular apse or the domed roof of a semicircular apse. noun
    The ancient basilica featured a beautifully decorated concha above the altar.
    The concha of the building was adorned with intricate mosaics.
  3. In anatomy, a term used to describe any shell-shaped structure in the body. noun
    The nasal concha are important for humidifying and filtering the air we breathe.
    Inflammation of the nasal concha can lead to breathing difficulties.