DED

from WordNet (r) 3.0 (2006)
DEd
    n 1: a doctor's degree in education [syn: {Doctor of Education},
         {EdD}, {DEd}]
    
from Jargon File (4.4.4, 14 Aug 2003)
DED
 /D.E.D/, n.

   Dark-Emitting Diode (that is, a burned-out LED). Compare {SED}, {LER},
   {write-only memory}. In the early 1970s both Signetics and Texas
   instruments released DED spec sheets as {AFJ}s (suggested uses
   included "as a power-off indicator").
    
from The Free On-line Dictionary of Computing (8 July 2008)
DED

   Dark-Emitting Diode (that is, a burned-out LED).  Compare
   {SED}, {LER}, {write-only memory}.  In the early 1970s both
   Signetics and Texas instruments released DED spec sheets as
   {AFJs} (suggested uses included "as a power-off indicator").

   [{Jargon File}]
    

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