Webster's New World Medical Dictionary

transurethral resection
Surgery to remove tis-
sue using a special instrument inserted through the
urethra. The procedure may be performed, for
example, to remove an enlarged prostate that is
obstructing the flow of urine. Abbreviated TUR.
transvaginal ultrasound
The creation of a pic-
ture called a sonogram by sending sound waves out
through a probe inserted into the vagina. The waves
bounce off the ovaries and other anatomical struc-
tures, and a computer uses the echoes to create a
visual image. Abbreviated TVS.
transverse
A horizontal plane that passes
through a standing body, parallel to the ground. See
also Appendix B, “Anatomic Orientation Terms.”
transverse fracture
See 
fracture, transverse.
transvestite
A person who dresses in the cloth-
ing of the opposite sex. Also known as a cross-
dresser.
transvestitism
Dressing in the clothing of the
opposite sex. Transvestitism is distinct from both
transsexualism and homosexuality. Also known as
cross-dressing.
trauma
A physical or emotional injury.
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trauma
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trauma center
A specialized hospital facility that
is designed to provide diagnostic and therapeutic
services for patients with injuries.
traumatic alopecia
See 
alopecia, traumatic.
traumatology
The branch of surgery that deals
with injured patients, usually on an emergency
basis. Patients who have suffered significant physical
trauma, as from a car accident, may be cared for in
a traumatology unit.