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• n  a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point

• perpendicular

News & Articles

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• Doug Mendenhall: The board is my shepher, I shall not want
  Somewhere between the broad nets of science fiction and the plumb line of this week’s U.S. Supreme Court, we can squint into the future and imagine a society in which businesses are free to tie strings on the religious lives of their employees.
  March 28, 2014 - Abilene Reporter-News