About
烷 is a phonosemantic compound created specifically for modern chemistry. The radical 火 (fire) places it in the semantic domain of combustible substances, namely hydrocarbons in organic chemical nomenclature. The phonetic element 完, pronounced wán, is used purely for its sound, without reference to its ordinary meaning 'complete' or 'finished'. Coined to represent an alkane, 烷 refers to a saturated hydrocarbon where carbon atoms are linked exclusively by single bonds. As a deliberate, modern scientific coinage, it has no ancient history, metaphorical usage, or role outside of chemical literature.
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