Definition of primage:
(n) :
(Australia, New Zealand) An additional import duty levied by customs.
(n) :
(archaic) A payment made for loading or unloading a ship, or for care of goods during transit by ship.
(n) :
(archaic, UK) An import duty levied by a guild of harbour pilots (especially at Kingston-upon-Hull and Newcastle-upon-Tyne).
(n) :
(engineering, rare) Droplets of water suspended in steam (especially in the cylinder of a steam engine).