any of a number of techniques used to obtain an X-ray photograph of a selected plane section of the human body or some other solid object
Word origin
C20: from Greek tomē a cutting + -graphy
tomography in American English
(təˈmɑgrəfi)
noun
a process for producing an image of a single plane of an object excluding all other planes, as by using CT scan or , ultrasound, in diagnostic medicine, seismic surveys, etc.