pertaining to, or resembling, silver; made of, or sounding like, silver; silvery.-of or pertaining to the argentine republic in south america.-a siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar structure.-white metal coated with silver.-a fish of europe (maurolicus pennantii) with silvery scales. the name is also applied to various fishes of the genus argentina.-a citizen of the argentine republic.