pen·ny·weight  (pěn'ē-wāt') 
n.
Abbr. dwt. or pwt.
A unit of troy weight equal to 24 grains, 1/20 of a troy ounce or approximately 1.555 grams. |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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