No - it's "single-lens reflex", a single attribute without comma. That is, a mirror redirecting light from a single lens to different targets (viewfinder and film/sensor).

If "four out of five words" was good enough, then an analogue film camera is also a DSLR - it's only missing the "digital" part after all. Seahorse and racehorse is also just one word apart, so basically the same, right?