Think you left a "not" out of there? Anyways my point is that in rock the word "chord" is a bit more loosely defined and on bass you would more commonly play a "power chord" for fullness than a traditional chord - especially if you are using a non-clean "tube" sound. As someone who also did a bit of study in classical music I 100% agree with you that rock tends to pervert the meanings of musical terms and I hate to not correct folks - but then again I try to adapt and speak their language when dealing with "rock heads".
yes, I did leave an important "not" out. Thanks for catching it