An abbreviated or truncated form, possibly related to copper or medical terminology; not a standard English word.
Possibly an abbreviation or technical shorthand, though without clear context this word does not have a well-documented etymology in standard English dictionaries.
Scientific and medical fields love abbreviations, so copr might have meant something specific in a laboratory or hospital context—but if you leave off the vowels from 'copper,' you get a skeleton of a word that means nothing to most speakers!
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