-graph is a suffix taken from the Greek verb graphein, meaning to write or record. In medical words, -graph refers to an instrument used to record data. A tom/o/ graph is an x-ray instrument used to...

-graph is a suffix taken from the Greek verb graphein, meaning to write or record. In medical words, -graph refers to an instrument used to record data. A tom/o/ graph is an x-ray instrument used to show tissue or organs in one plane (slice, so to speak). To obtain an x-ray of a slice of an organ, the radiographer would use  a_______________ / __________________/_____________________ .

NOTE: The word root for to cut is tom; the combining form is tom/o.