腫塊切開術
Oncotomy \On*cot"o*my\ ([o^][ng]"k[o^]t*[-o]*m[y^]), n. [Gr. 'o`gkos bulk, mass + te`mnein to cut: cf. F. oncotomie.] (Surg.) The opening of an abscess, or the removal of a tumor, with a cutting instrument. [Written also {onkotomy}.] --Dunglison.