What does the word copperhead mean?

Usage examples for copperhead

  1. General Tuttle ran for governor on the Copperhead ticket in Iowa last year. – A Woman's Life-Work Labors and Experiences by Laura S. Haviland
  2. A copperhead snake was killed here about the same date; caterpillars did not seem to retire, as they usually do, but came forth every warm day. – A Year in the Fields by John Burroughs
  3. But a more plausible explanation associates the peace advocates with the deadly copperhead snake. – Abraham Lincoln and the Union A Chronicle of the Embattled North, Volume 29 In The Chronicles Of America Series by Nathaniel W. Stephenson