Ad valorem
- 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.
The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.