D defs.my
Entry 1 sense Webster, 1913

Ad valorem

· Ad va·lo·rem · IPA
01 A term used to denote a duty or charge laid upon goods, at a certain rate per cent upon their value, as stated in their invoice, -- in oppo…
  1. 1.
    A term used to denote a duty or charge laid upon goods, at a certain rate per cent upon their value, as stated in their invoice, -- in opposition to a specific sum upon a given quantity or number; as, an ad valorem duty of twenty per cent.(Com.)