Relating to the epidermis; of or pertaining to the outer layer of skin, formed by adding '-al' to 'epidermic.'
From epidermic plus the suffix '-al,' creating a doubly-suffixed adjective that combines both '-ic' and '-al' endings—a somewhat redundant formation that appears in older scientific texts but is rarely used in modern medicine.
Adding '-al' to 'epidermic' to make 'epidermical' is technically redundant since both already mean the same thing—it's like saying 'really real' instead of 'real,' and this is why modern English has naturally phased it out in favor of simpler forms!
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