fast motion
noun Cinematography.
action that appears to move faster than normal on the screen, accomplished by filming the action at less than normal speed in the camera and then projecting it at normal speed.
Compare
time-lapse photography.
Origin of fast motion
First recorded in 1910–15
Words nearby fast motion
fast follower,
fast food,
fast forward,
fast ice,
fast lane,
fast motion,
fast neutron,
fast of gedaliah,
fast one,
fast reactor,
fast rhythm
British Dictionary definitions for fast motion
fast motion
noun
films
action that appears to have occurred at a faster speed than that at which it was filmed
Compare slow motion (def. 1)