heteroatom

Etymology
From.

Noun

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

Translations

 * Finnish: heteroatomi
 * German: Heteroatom
 * Korean: 헤테로원자
 * Spanish: heteroátomo