That definition isn't any different then the one found in Merriam Webster. A good argument can be made, that maximizing individual rights is the same as upholding the principles of absolute and unrestricted liberty.
>>>It seems to me that you are attacking libertarians on the basis of dictionary definitions...
Not at all. My past exchanges with libertarians here on FR, prove conclusively, that I have very real differences with libertarians that go far beyond mere dictionary definitions. But dictionaries do offer accepted standards and basic interpretations for words, that we all use in our daily communications. In this specific case, definitions are being used for reasons of political comparison. I view those ideas found in the libertarian philosophy, much different when compared to the political agenda of the conservative movement.
>>>If anything libertarians tend to be rather uptight controlled intellectual chaps, not wild dopers...
As applied to libertarians in general, I would have to disagree with you. I see nothing intellectual about supporting drug legalization, or spreading STD's through the legalization of prostitution. Those are just two differences conservatives have with libertarians.