prostatoseminalvesiculectomy UK /ˌprɒsteɪtəʊˌsɛmɪnəlˌvɛsɪkjʊlˈɛktəmi/US /ˌprɒsteɪtoʊˌsɛmɪnəlˌvɛsɪkjʊlˈɛktəmi/ noun1 •a surgical procedure in which the prostate gland, seminal vesicles, and ejaculatory ducts are removed formsprostatoseminalvesiculectomies