Trachea (Gr. τραχύς, rough). The windpipe.
Tragus (Gr. τράγος, a goat). The eminence in front of the opening of the ear; sometimes hairy, like a goat’s beard.
Transfusion (Lat. transfundo, to pour from one vessel to another). The operation of injecting blood taken from one person into the veins of another.
Trichina Spiralis. (A twisted hair). A minute species of parasite, or worm, which infests the flesh of the hog: may be introduced into the human system by eating pork not thoroughly cooked.
Trochanter (Gr. τροχάω, to turn, to revolve). Name given to two projections on the upper extremities of the femur, which give attachment to the rotator muscles of the thigh.
Trypsin. The ferment principle in pancreatic juice, which converts proteid material into peptones.
Tubercle (Lat. tuber, a bunch). A pimple, swelling, or tumor. A morbid product occurring in certain lung diseases.
Tuberosity (Lat. tuber, tuberis, a swelling). A protuberance.
Turbinated (Lat. turbinatus, from turbo, turbinis, a top). Formed like a top; a name given to the bones in the outer wall of the nasal fossæ.
Tympanum (Gr. τύμπανον, a drum). The cavity of the middle ear, resembling a drum in being closed by two membranes.