palimpsest /PAL-imp-sest/. noun or adjective. A manuscript or artwork which has been erased, scraped or washed off and overwritten, leaving traces of the original. More generally, something that has been reused or altered but bears evidence of the original. Owing to its durability (and expense), most existing written palimpsests are found on parchment or vellum manuscripts. Many texts only survive in this form. Use of the word has expanded into astronomy, medicine, archaeology and even augmented reality.
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