The word 性感 is formed by directly combining two concept characters: 性 (xìng), which means "sex" or "inherent nature", and 感 (gǎn), which means "feeling" or "sense". It is a conceptual fusion where the inherent quality of "sex" merges with the notion of "feeling" or "perception", resulting in the composite idea of "sex appeal" or the quality of exuding a palpable, sensory attraction related to one's sexuality.