Octahedral is a term used in chemistry to describe a molecular or structural geometry that resembles an octahedron, which is an eight-faced three-dimensional figure. Some synonyms for the word "octahedral" include octahedrous, octahedric, and octahedriform. Other terms that can be used to describe a similar shape include cubic and cuboctahedral. These terms may be used interchangeably depending on the context of the discussion. The shape of an octahedral molecule is important in many chemical reactions and understanding its properties is essential in many fields, including crystallography and materials science.