No, the term "transformer" does not include "burden resistor", but that doesn't prevent anyone from packaging a resistor with their CT and selling int as a "CT with a built-in burden resistor included", albeit, with what little reading I've been done, that would limit the range of applications for a given part, and a cursory google search hasn't turned up any yet, but I haven't looked at page 2 of the results yet.
Thanks, Rich