What does the suffix -stomy mean?

The suffix -stomy refers to the creation of a new opening, particularly in a surgical context. This term is commonly used in medical terminology to describe procedures that involve making an artificial opening into an organ or body cavity. For instance, in procedures like colostomy or tracheostomy, a new opening is established to allow for functions such as waste removal or breathing to occur outside the usual pathways.

The other options do not fit the definition of -stomy. While "incision" pertains to cutting into a structure, it does not encompass the aspect of creating an opening. "Process of measuring," typically represented by the suffix -metry, relates to measurement rather than the creation of an opening. Lastly, "visual examination" is associated with the suffix -scopy, which indicates inspecting an organ or cavity visually, not necessarily creating an opening. Thus, -stomy is unique in its meaning of forming a new opening.