Simple past tense and past participle of phosphoresce.(verb)
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Use "phosphoresced" in a sentence
"Now, most of the city lay in quiet ruins that gently phosphoresced by night."
"The iridescence phosphoresced through the spouts of water from the fountain."
"In the case of tabasheer he discovered it was a form of opal that phosphoresced when hot, reflected a curious bluish-white light, and was more holes than solid, so it absorbed liquid."