A photographic or radiographic image produced using fluorescent materials, especially one created through X-ray fluoroscopy.
Compound of 'fluoro-' (relating to fluorescence) and '-type' (from Greek 'typos,' impression or image), dating to early 20th-century radiography innovation.
This word is a relic of photography's scientific phase—before we called them 'fluoroscopy images' or 'X-rays,' scientists created 'fluorotypes' by letting fluorescent screens capture invisible radiation, basically making light out of darkness.
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