The Chinese medical term "动脉瘤" (dòngmài liú), meaning "aneurysm", is formed through a logical, descriptive compounding process: it combines "动" (dòng, meaning movement or pulsation) with "脉" (mài, meaning vessel) to create "动脉" (dòngmài), which specifically denotes "artery", the pulsating blood vessel. To this, it appends "瘤" (liú, meaning tumor or swelling), resulting in the complete term "动脉瘤", which literally translates to "artery tumor/swelling", accurately describing the pathological dilation or bulge in an arterial wall.