gy

from WordNet (r) 3.0 (2006)
Gy
    n 1: the SI unit of energy absorbed from ionizing radiation;
         equal to the absorption of one joule of radiation energy by
         one kilogram of matter; one gray equals 100 rad [syn:
         {gray}, {Gy}]
    
from The Free On-line Dictionary of Computing (8 July 2008)
gy

   <networking> The {country code} for Guyana.

   (1999-01-27)
    

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