Wiktionary
tetracoordinate
a. (context chemistry English) Having a coordination number of four
Wikipedia
Tetracoordinate
Tetracoordinate in coordination chemistry generally refers to four ligands or atomic attachments to a single metal centre. Tetracoordinate species can form tetrahedral, square planar or pyramidal geometries. This is usually dictated by lone electron pairs on the metal centre.
Category:Molecular geometry Category:Stereochemistry