Phosphors rhymes with:
unprofor's, backdoors, baltimore's, bangalore's, becor's, bellcore's, bookstores, carnivores, centaur's, centaurs, centocor's, commodore's, dinosaurs, downpours, drugstores, ecuador's, encor's, encores, indoors, megastores, mentor's, nucor's, salvador's, sophomores, superstores, toystores, unprofor's
Phosphors sounds like:
pacifiers, peacekeepers, phosphoric, phosphorous, phosphorus