The term comics refers to the comics medium when used as an uncountable noun and thus takes the singular: "comics is a medium" rather than "comics are a medium". When comic appears as a countable noun it refers to instances of the medium, such as individual comic strips or comic books: "Tom's comics are in the basement."
Try to answer this question if possible (otherwise reply "unanswerable"): When comic doesn't appear as a countable noun it refers to what?
unanswerable