the externally visible cartilaginous structure of the external ear

division of a usually pinnately divided leaf

A leaflet of a pinnate leaf. See Illust. of Bipinnate leaf, under Bipinnate.

One of the primary divisions of a decompound leaf.

One of the divisions of a pinnate part or organ.

Any species of Pinna, a genus of large bivalve mollusks found in all warm seas. The byssus consists of a large number of long, silky fibers, which have been used in manufacturing woven fabrics, as a curiosity.

The auricle of the ear. See Ear.

A name applied, in science, to the fin of a fish, or to the feather or wing of a bird; in anat., the part of the external ear which projects beyond the head; in bot., the leaflet of a pinnate leaf.

A leaflet of a pinnate leaf; the outer ear; a bird's feather or wing; a fish- fin.

Shape of the pinna. – Genera and Subgenera of Chipmunks by John A. White

After a few minutes, a certain confidence being established between us, the pinna emerged from its retirement, in so far as such creatures are permitted by Nature. – Tropic Days by E. J. Banfield

The imperial rescript for that purpose was even addressed to " Dionysius, Pinna, Demetrius, and the other bishops;" it grants them full indulgence in the exercise of their religion, and by its very address almost acknowledges their rank in the state. – History Of Egypt From 330 B.C. To The Present Time, Volume 11 (of 12) by S. Rappoport

It is an adductor of the pinna of the ear. – Artistic Anatomy of Animals by Édouard Cuyer

It is covered by the auricular muscles, and by the base of the pinna of the ear. – Artistic Anatomy of Animals by Édouard Cuyer

We are supposing, in the description of the muscles which move it, that this pinna has its opening directed outwards. – Artistic Anatomy of Animals by Édouard Cuyer

There was the same shortening of the pinna, the same broad curve of the upper lobe, the same convolution of the inner cartilage. – The Adventure of the Cardboard Box by Arthur Conan Doyle

138.- The Pinna, or Auricle. – A Practical Physiology by Albert F. Blaisdell

The pinna by its peculiar shape aids to some extent the entrance of sound waves into the auditory canal. – Physiology and Hygiene for Secondary Schools by Francis M. Walters, A.M.

To straighten the canal, the pinna should be pulled upwards and backwards by the left hand. – Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition. by Alexander Miles Alexis Thomson