The term 'BEAM CROSS' is a type of LASER technology used in medical and industrial applications. It is a combination of two different LASER beams that are crossed at a certain angle to create a precise pattern. This pattern can be used for cutting, welding, and other applications. The term 'LASER' is an acronym for Light Amplification by Stimulated Emission of Radiation, which is the process by which the LASER beam is created.