I wish you HAD simply said your definition is the same as the Vaticans. At least that would have implied you honestly believed it. You actually said nothing like that. What you provided was a two paragraph obfuscation of what is apparently Catholic doctrine. Amazingly, by your interpretation of Catholic doctrine, only Catholic denominations are actually "Churches" ("perfectly so" in your words), while most protestant denominations don't measure up to Vatican standards and qualify only as "ecclesiastical communities". Beyond blind devotion to Catholic doctrine, I wonder if you could possibly support that mindset with words and teachings from the foremost experts on the topic. Specifically, Jesus Christ and the Apostle Paul.