Word meanings are determined purely by tradition. There isn't an objective reality about what words do or don't mean apart from how people use them. If you make up your own definitions for words instead of using the traditional ones, you sacrifice the possibility of communication with people who don't know your definitions. That's glory for you!
Words change meaning and definitions drift all the time. Language isn't static and adapts to modern times.
Besides, this bizarre tangent about tradition ignores that this has some very practical downsides for nurses, it's not just about preserving tradition or whatnot.
