arriflexEtymologyTrade name, from the name of the Arri company (named after founders August Arnold and Robert Richter) and reflex.arriflex means an early kind of portable film camera, the first to use a reflex mirror shutter. Lexicurio rates it Sui generis — a strength score of 91 out of 100.nounAn early kind of portable film camera, the first to use a reflex mirror shutter.