Which of the following denotes a surgical removal of tissue in medical terminology?

The term that denotes surgical removal of tissue in medical terminology is represented by the suffix "-ectomy." This suffix is used to indicate the excision or removal of a particular organ or tissue. For example, a "appendectomy" refers specifically to the surgical removal of the appendix, while a "mastectomy" refers to the removal of breast tissue.

The other suffixes cover different types of surgical procedures. "-tomy" refers to an incision or cutting into a part of the body, which doesn't imply removal but rather a surgical entry. "-ostomy" indicates the creation of an opening or stoma, typically to allow waste to exit the body, but it doesn't involve the removal of tissue per se. Lastly, "-plasty" refers to surgical repair or reconstruction of a tissue or organ, which may involve altering the structure but not necessarily removing it. Thus, "-ectomy" specifically captures the meaning of surgical removal.