Noun

1. The appearance of rock, after having been worn smooth by a passing glacier.
   • 2001, Bill Guyton, Glaciers of California http://books.google.com/books?ie=UTF-8&vid=ISBN0520226836&id=4dWOsGb_8EgC&pg=PA45&lpg=PA45&dq=Glacial+polish&sig=ohW_Fc5KsOE7XkTIg4JD3DbkucI

     Tenaya Lake was at one time under as much as 2,460 feet of glacial ice that produced a pressure of about 74 tons per square foot and extensive glacial polish (fig. 18).

   • 2002, John Menzies, Modern and Past Glacial Environments: Revised Student Edition http://books.google.com/books?ie=UTF-8&vid=ISBN0750642262&id=QJlBndU4-pgC&pg=PA138&lpg=PA138&dq=Glacial+polish&sig=eoa6916xMajvnGhW9KVf8AGdnMY

     Glacial polish on lee surfaces may reflect this sorting.

   • 1953, Hans Cloos, Conversation with the Earth http://books.google.com/books?ie=UTF-8&vid=LCCN52012186&id=EZ4Vh8R9XcQC&q=Glacial+polish&dq=Glacial+polish

     However, in Canada and Northern Europe—where they are known collectively as "shields"—the basement formations stretch out in the lowlands, smoothed by glacial polish.