Deficiency(redirected from vitamin A, gingival hyperplasia in deficiency)
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A shortage or insufficiency. The amount by which federal Income Tax due exceeds the amount reported by the taxpayer on his or her return; also, the amount owed by a taxpayer who has not filed a return. The outstanding balance of a debt secured by a mortgage after the mortgaged property has been sold to satisfy the obligation at a price less than the debt.