multiflash
/ˈmʌltɪflaʃ/adjective
1 Photography. Produced by means of or involving two or more flashbulbs or flash units operated in rapid succession, so that the resulting photograph shows successive positions of an action sequence.
2Designating a process or apparatus for desalinating sea water in several stages in which water is converted suddenly into steam at successively lower pressures.
Origin
1930s; earliest use found in Photo Technique. From multi- + flash.