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phosphene (n.)
"the luminous ring produced by pressing the eyeball with the finger, etc.," 1872, from French phosphène, irregularly formed from Greek phōs "light" + phainein "to show," both from PIE root *bha- (1) "to shine."
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Dictionary entries near phosphene
phony
phooey
phoresis
phoresy
phosphate
phosphene
Phosphor
phosphorescence
phosphorescent
phosphoric
phosphorous