gram, abbr. g, unit of mass equal to 0.001 kilogram , the basic unit of mass in the metric system . The gram is the unit of mass in the cgs system . It is approximately equal to 0.035 avoirdupois ounce, or 0.0022 pound; a 1-pound mass equals about 453.6 grams.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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