Onychia is an inflammation of the nail folds (surrounding tissue of the nail plate) of the nail with formation of pus and shedding of the nail. Onychia results from the introduction of microscopic pathogens through small wounds.
A Remittance Advice (RA) is a notice of payments and adjustments sent to providers, billers, and suppliers. After a claim has been received and processed, a Medicare contractor produces the RA, which may serve as a companion to a claim payment(s) or as an explanation when there is no payment.
Someone's remit is the area of activity which they are expected to deal with, or which they have authority to deal with. That issue is not within the remit of the working group. The centre has a remit to advise Asian businesses and entrepreneurs.