( anatomy) a structure that resembles a shell in shape

The plain semidome of an apse; sometimes used for the entire apse.

The external ear; esp. the largest and deepest concavity of the external ear, surrounding the entrance to the auditory canal.

The larger cavity of the external ear.

The cavity which opens into the meatus; the external ear; a projection from the lateral wall of the olfactory organ.

" Well," he said, " Selden seemed ready to cut my throat till he examined Poche's bridle and saw the B on the back of a concha." – The Heritage of the Hills by Arthur P. Hankins

Thence it is directed outwards towards the pinna of the ear, and is inserted into the internal border of the scutiform cartilage and on the inner side of the concha- that is to say, of the conchinian cartilage- which forms the principal part of the pinna. – Artistic Anatomy of Animals by Édouard Cuyer

Send Concha and the other maids here. – The Bell-Ringer of Angel's and Other Stories by Bret Harte

If your master is fond enough of Mademoiselle Paquita Valdes to surmount all these obstacles, he certainly won't triumph over Dona Concha Marialva, the duenna who accompanies her and would put her under her petticoats sooner than leave her. – The Thirteen by Honore de Balzac

Of course there's the Concha variety, that go out without even stockings. – The Bell-Ringer of Angel's and Other Stories by Bret Harte

She had learned from Concha on the previous evening that a part of the shanty was used as a tienda or shop for the laborers and rancheros. – On the Frontier by Bret Harte

Waves of sound reach the ear, and are directed by the concha to the external passage, at the end of which they reach the tympanic membrane. – A Practical Physiology by Albert F. Blaisdell

But Concha did not know of this. – The Old Franciscan Missions Of California by George Wharton James

She returned their visit at Los Gatos, and there made the formal acquaintance of Don Jose's grandmother, a lady who still regarded the decrepit Concha as a giddy muchacha, and who herself glittered as with the phosphorescence of refined decay. – On the Frontier by Bret Harte

Dona Concha, who distrusted Henri, made Paquita pass between herself and the old man. – The Thirteen by Honore de Balzac

And Concha had well learned to pray. – Chita: A Memory of Last Island by Lafcadio Hearn

When the hoarse reverberations of the thunder, a hundred times re- echoed, lost themselves in the distance, there was heard the soughing of the wind as it drove the raindrops with a continuous tick- tack against the concha- panes of the closed windows. – The Social Cancer A Complete English Version of Noli Me Tangere by José Rizal

She was the wife of Prince Ferdinand, who afterward remarried Dona Maria Luisa Pie de Concha, who was created Duchess of Talavera de la Reina, and given the courtesy title of Highness by Alfonso. – Kelly Miller's History of the World War for Human Rights by Kelly Miller

The soldiers begin it at six o'clock in the morning, marching by regiments down to the Concha, clearing for action, and striking out into the gentle surf, all in simultaneous obedience to successive words of command. – Spanish Highways and Byways by Katharine Lee Bates

Dona Concha suspects you already... – The Thirteen by Honore de Balzac