The word "心脏病" is formed through a direct, logical combination of three meaningful components: "心" meaning "heart", "脏" meaning "internal organ", and "病" meaning "disease" or "illness". It is constructed by first combining "心" and "脏" to specify the organ in question, the heart, and then appending "病" to denote a pathological condition of that specific organ, thus creating the complete concept for "heart disease".