It wasn't a definition. The person you replied to used "means" in the sense of "necessarily implies", not in the sense of "is precisely equivalent to". That's w

It wasn't a definition. The person you replied to used "means" in the sense of "necessarily implies", not in the sense of "is precisely equivalent to". That's what the symbols in my earlier comment meant. E.g. > "Murder" is a legal term, it means the act was premeditated. Somebody who says that is not claiming that all premeditated acts are murder.