AskDefine | Define heteroatom

User Contributed Dictionary




  1. Any atom in a heterocyclic ring (or other structure normally built of carbon atoms) that is not a carbon atom.

Related terms


non-carbon atom in a carbon structure
  • German: Heteroatom
  • Korean: 헤테로원자

See also

Extensive Definition

In the nomenclature of organic chemistry, a heteroatom (from Ancient Greek heteros, different, + atomos) is any atom that is not carbon or hydrogen. It is typically, but not exclusively, nitrogen, oxygen, sulfur, phosphorus, boron, chlorine, bromine, or iodine.
In the description of protein structure, particularly in the now-deprecated Protein Data Bank file format, a heteroatom record (HETATM) describes an atom belonging to a small molecule cofactor rather than to part of a biopolymer chain.
heteroatom in Arabic: ذرة غير متجانسة
heteroatom in Danish: Heteroatom
heteroatom in German: Heteroatom
heteroatom in Spanish: Heteroátomo
heteroatom in Dutch: Heteroatoom
heteroatom in Norwegian: Heteroatom
heteroatom in Polish: Heteroatom
heteroatom in Portuguese: Heteroátomo
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