Source : Webster's Revised Unabridged Dictionary (1913)

Pratique \Prat"ique\, n. [F.; cf. It. pratica, Sp. practica. See
   {Practice}.]
   1. (Com.) Primarily, liberty of converse; intercourse; hence,
      a certificate, given after compliance with quarantine
      regulations, permitting a ship to land passengers and
      crew; -- a term used particularly in the south of Europe.