pennyweight

3 definitions found

pennyweight - Collaborative International Dictionary of English v.0.48 :

  Pennyweight \Pen"ny*weight`\, n.
     A troy weight containing twenty-four grains, or the twentieth
     part of a troy ounce; 1.555 grams; as, a pennyweight of gold
     or of arsenic. It is abbreviated dwt or pwt. It was anciently
     the weight of a silver penny, whence the name.
     [1913 Webster + PJC]

pennyweight - WordNet (r) 2.1 (2005) :

  pennyweight
      n 1: a unit of apothecary weight equal to 24 grains

pennyweight - Bouvier's Law Dictionary, Revised 6th Ed (1856) :

  PENNYWEIGHT. A troy weight which weighs twenty-four grains, or one-twentieth 
  part of an ounce. Vide Weights.