动脉 dòngmài artery
How to remember 动脉: 动 move + 脉 a pulse = artery.
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How it is used
- Artery (anatomy) - 主动脉 (zhǔdòngmài) the aorta.
- Figurative 'lifeline/main artery': 交通动脉 a major transport artery.
- Contrast 静脉 (jìngmài, vein); the 动/静 pair mirrors blood flowing out vs back.