[1] : The Collaborative International Dictionary of English v.0.48

troy \troy\, n.
   troy weight.
   1913 webster

   troy weight, the weight which gold and silver, jewels, and
      the like, are weighed. it was so named from troyes, in
      france, where it was first adopted in europe. the troy
      ounce is supposed to have been brought from cairo during
      the crusades. in this weight the pound is divided into 12
      ounces, the ounce into 20 pennyweights, and the
      pennyweight into 24 grains; hence, the troy ounce contains
      480 grains, and the troy pound contains 5760 grains. the
      avoirdupois pound contains 7000 troy grains; so that 175
      pounds troy equal 144 pounds avoirdupois, or 1 pound troy
      = 0.82286 of a pound avoirdupois, and 1 ounce troy =
      117/175 or 1.09714 ounce avoirdupois. troy weight when
      divided, the pound into 12 ounces, the ounce into 8 drams,
      the dram into 3 scruples, and the scruple into 20 grains,
      is called apothecaries' weight, used in weighing
      medicines, etc. in the standard weights of the united
      states, the troy ounce is divided decimally down to the
      1/10000 part.
      1913 webster
see also:
troy weight 

[2] : WordNet (r) 2.0

troy weight
     n : a system of weights used for precious metals and gemstones;
         based on a 12-ounce pound and an ounce of 480 grains
         syn: troy
see also:
troy 

[3] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

troy weight. a weight less ponderous than the avoirdupois weight, in the 
proportion of seven thousand, for the latter, to five thousand seven hundred 
and sixty, to the former. dane's ab. index, h.t. vide weights. 

Troy Weight >> T Words
Troy Weight, definition of term: Troy Weight
troy+weight_pag1.html

Weight >> W Words
Weight, definition of term: Weight
weight_pag1.html

Troy >> T Words
Troy, definition of term: Troy
troy_pag1.html

Troy Ny >> T Words
Troy Ny, definition of term: Troy Ny
troy+ny_pag1.html

Troy Pound >> T Words
Troy Pound, definition of term: Troy Pound
troy+pound_pag1.html

Troy Ounce >> T Words
Troy Ounce, definition of term: Troy Ounce
troy+ounce_pag1.html

Middle Weight >> M Words
Middle Weight, definition of term: Middle Weight
middle+weight_pag1.html

Body Weight >> B Words
Body Weight, definition of term: Body Weight
body+weight_pag1.html

Dead Weight >> D Words
Dead Weight, definition of term: Dead Weight
dead+weight_pag1.html

Gross Weight >> G Words
Gross Weight, definition of term: Gross Weight
gross+weight_pag1.html

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