ad va·lo·rem /ˌædvəˈlorəm, ˈlɔr-/
(ad.)按價
Ad va·lo·rem Com. 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.
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ad valorem
adv : in proportion to the estimated value of the goods taxed;
"the goods were taxed ad valorem" [syn: ad val]