poundagepound·age /ˈpaʊndɪdʒ/ noun [uncountableU]FINANCETAX a charge or tax made on each pound in money or in weightIf the house was valued at £30,000 and the local poundage was 2p in the pound, the tax would be £30,000 × 0.02 or £600 a year.
The measurements indicate the poundage of textile products that different clothing imports contain.