chemical symbol

== English == === Noun === chemical symbol (plural chemical symbols) The 1- to 3-letter international code for a chemical element. It is the same in all languages. Thus, gold always has the chemical symbol "Au", regardless of what people call it in their language. (by extension) a similar symbol used to denote a different chemical entity, such as an isotope (e.g. D = deuterium, though "2H" is more correct), a radical (e.g. Ph [or Φ] = phenyl), an unknown (e.g. M = a metal, or X = a halogen), etc. ==== Translations ==== ==== See also ==== Category:Symbols for chemical elements === References ===