ECG
EEG
EKG
X ray
X-ray movie
cable
cablegram
chest X-ray
day letter
electrocardiogram
electrocorticogram
electroencephalogram
electroencephalograph
electromyogram
encephalogram
encephalograph
fast telegram
message
night letter
orthodiagram
photofluorogram
photofluorograph
photogram
pyelogram
radiograph
roentgenogram
roentgenograph
scotograph
shadowgram
shadowgraph
skiagram
skiagraph
telegram
telegraph
telex
wire
Greg
bettor
datapad
meteoroid
neo-con
perm
term
thatching