| Noun | 1. | tomograph - X-ray machine in which a computer builds a detailed image of a particular plane through an object from multiple X-ray measurementsCAT scanner, computerized axial tomography scanner - a tomograph that constructs a 3-D model of an object by combining parallel planes PET scanner, positron emission tomography scanner - a tomograph that produces cross-sectional X-rays of metabolic processes in the body X-ray machine - an apparatus that provides a source of X rays |