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A form of traditional treatment in Southeast Asia in which the edge of a coin is rubbed on the skin to effect a cure.
1. A traditional health practice in which a heated coin is placed or rubbed on the skin (to treat conditions such as asthma). A health care provider who is unaware of this practice could erroneously attribute the lesions caused by coining to physical abuse. Synonym: cao gio
2. In biomedical engineering, a cold-working process used to improve the strength of metals used for biological purposes (e.g., nails used in orthopedic surgeries).