The term GLASS BOTTOM is composed of two words, the first being 'GLASS' and the second being 'BOTTOM'. The crossword solution for the term is STEM, which stands for Science, Technology, Engineering, and Mathematics. STEM is an interdisciplinary field of study that focuses on the integration of these four disciplines in order to solve complex problems. GLASS BOTTOM is a term used to describe a type of technology that uses GLASS as a material to create a transparent surface, often used in the construction of aquariums or other underwater structures.