Electrical wall outlet having two plug receptacles.
Duplex receptacle
Electrical outlet with space for two plugs.
Duplicate
To double. To copy.
Duplicate switching
Wiring of multiple lighting fixtures in a way that half of the lamps can be worked independently of the other half, allowing for a lessening of the lighting level.
Durability
Ability to survive heavy wear and tear without deterioration.
Durable power of attorney
Legal instrument permitting one to grant others general or specific powers for administering their finances.
Duralumin
Trademark name of a strong aluminum alloy.
Duress
Act of forcing an individual or business to do something against their will and can be used as a legitimate defense in court to reverse the effect of the compelled act.
Durham system
Trade name of a rigid, threaded joint piping using recessed drainage fittings.
Dust
Powdery earth or other solid matter in pieces fine & small enough to be easily suspended in air.
