The Chinese word 硫磺 (liúhuáng), meaning "sulfur", is a binomial compound formed through semantic combination. The first character, 硫 (liú), is a phonetic-semantic character where the stone radical (石) indicates its solid, mineral nature, and historically, the 㐬 component suggested its sound. The second character, 磺 (huáng), whose stone radical also classifies it as a mineral, adds a reinforcing semantic layer, as it can independently refer to sulfur or sulfurous matter. Together, they form a synonymous or tautological compound, where both elements contribute similar meanings to specify and emphasize the yellow, mineral substance known as sulfur, a common pattern in Chinese for creating precise technical or common nouns.