Words & Definitions for the letter D

Damper
Defrost Cycle
Defrost Timer
Degree-Day
Delta Transformer
Demand Meter
Design Pressure
Detector, Leak
Dew Point
Diaphragm
Dichlorodifluoromethane
Diode
Direct Current(d.c.)
Drier
Drip Pan
Dry Bulb Temperature
Dry Cell Battery
Dry Ice