About
The character 腚 is a phono-semantic compound that adheres to the typical structure for body-related characters: the semantic component 月, the flesh radical, on the left identifies it as a body part, and the phonetic component 定 on the right supplies the pronunciation. It refers specifically to the buttocks or the lower posterior region of the human body. From its origin, it has consistently served as a stable, concrete descriptor in both colloquial and anatomical contexts, with no notable extension into abstract or other physical domains.
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