INDUSTRY|chemistry|chemical compound
- fail Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- ring
- en
- Definition a closed group of atoms Reference "Online University Degree Search. Cambridge Encyclopedia :: Cambridge Encyclopedia Vol. 63 http://encyclopedia.stateuniversity.com/pages/18713/ring-chemistry.html [1.7.2010]"
- Comment "For the ring index, see: IUPAC Gold Book http://goldbook.iupac.org/list_cyclic.html [1.7.2010] For ring details, see: IUPAC Gold Book http://goldbook.iupac.org/UHOVQNZJYSORNB-UHFFFAOYAH.html [1.7.2010]"