Tra-pe´zi-us. The name of a muscle, so called from its form.

Tri´ceps. [L. tres, three, and caput, head.] Three. A name given to muscles that have three attachments at one extremity.

Tri-cus´pid. [L. tres, three, and cuspis, point.] The triangular valves in the right side of the heart.

Troch´le-a. [Gr. τροχαλια, trochalia, a pulley.] A pulley-like cartilage, over which the tendon of a muscle of the eye passes.

Troch-le-a´ris. The name of a muscle of the eye.

Trunk. The principal part of the body, to which the limbs are articulated.

Tu´ber-cle. [L. tuber, a bunch.] A small push, swelling, or tumor, on animal bodies.

Tu-ber-os´i-ty. The state of being knobbed or protuberant.

Tym´pan-um. [L.] The middle ear.

Ul´na. [L.] A bone of the forearm.