conchaPronunciation: /ˈkɒŋkə/Definition of concha noun (plural conchae /-kiː/) Anatomy & Zoology a part resembling a spiral shell, in particular: the depression in the external ear leading to its central opening. (also nasal concha) any of several thin, scroll-like (turbinate) bones in the sides of the nasal cavity. Origin: late 16th century: from Latin (see conch)concha in other Oxford dictionaries Definition of concha in the US English dictionary
