Transurethral resection: Surgery to remove tissue 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.

Transurethral resection: Surgery to remove tissue 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.