The building blocks of English

Affixes

urethr(o)-

The urethra.

English urethra (from Greek ourein, urinate), plus ‑o‑.

The urethra is the tube by which urine passes out of the body from the bladder. Urethritis is inflammation of it; urethroplasty (Greek plastos, formed, moulded) is its surgical repair; urethrography (Greek ‑graphia, writing) is x-ray examination of it, after introducing a radiopaque fluid.