The Nicol prism is an important optical instrument that is used in various scientific and industrial applications. It is also known by several other names such as the Glan-Thompson prism, the Glan-Taylor prism, and the Wollaston prism. These synonyms are based on different variations and improvements made to the original design of the Nicol prism. For example, the Glan-Thompson prism has a modified structure that reduces glare and reflection while the Glan-Taylor prism features a polarizer and analyzer that allows for increased precision in light measurements. The Wollaston prism is named after William Hyde Wollaston, who invented a similar optical device that served the same functions as the Nicol prism.