PLUMMET
, Plumb-rule, or Plumb-line, an instrument used by masons, carpenters, &c, to draw perpendiculars; in order to judge whether walls, &c, be upright, or planes horizontal, and the like.
, Plumb-rule, or Plumb-line, an instrument used by masons, carpenters, &c, to draw perpendiculars; in order to judge whether walls, &c, be upright, or planes horizontal, and the like.
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Entry taken from A Mathematical and Philosophical Dictionary, by Charles Hutton, 1796.
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