conchae definition
Noun. 1. concha - (anatomy) a structure that resembles a shell in shape. anatomical structure, bodily structure, body structure, complex body part, structure-a particular complex anatomical part of a living thing; he has good bone structure.nasal concha-one of several turbinate bones in the nasal cavity.oncha. n, pl-chae (-kiË). 1. (Anatomy) any bodily organ or part resembling a shell in shape, such as the external ear.
nasal concha. One of the three scroll-like bones that project medially from the lateral wall of the nasal cavity; a turbinate bone. The superior and middle conchae are processes of the lateral mass of the ethmoid bone; the inferior concha is a facial bone.Each overlies a meatus.ne of the three scroll-like bones that project medially from the lateral wall of the nasal cavity; a turbinate bone. The superior and middle conchae are processes of the lateral mass of the ethmoid bone; the inferior concha is a facial bone. Each overlies a meatus.