DEd n : a doctor's degree in education [syn: {Doctor of Education}, {EdD}]
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 {AFJ}s (suggested uses included "as a power-off indicator"). [{Jargon File}]