"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
'Da' to 'De', 'Df' to 'Dp', 'Dq' to 'Dz'
| D* | - | specific detectivity |
| d | - | deci (10–1) |
| D | - | dispersion coefficient |
| da | - | deka (10) |
| D-A | - | digital-to-analog |
| D/A | - | digital-to-analog converter [DAC Manufacturers] |
| DAA | - | Data Access Arrangement |
| D/L | - | downlink |
| DAC | - | digital-to-analog converter |
| DACS | - | digital access and cross-connect system |
| DALI | - | Digital Addressable Lighting Interface |
| DAMA | - | demand assignment multiple access |
| DARPA | - | Defense Advanced Research Projects Agency |
| DAS | - | Directly Attached Storage |
| DAS | - | Data Activity Signal |
| DASD | - | Direct Access Storage Device |
| DAT | - | Digital Audio Tape [Tape Drive Manufacturers] |
| DAV | - | Data AValiable. DatA Valid |
| DAVIC | - | Digital Audio Visual Council |
| dB | - | decibel |
| DBA | - | Dynamic Bandwidth Allocation |
| dBa | - | decibels adjusted |
| dBa(F1A) | - | noise power measured by a set with F1A-line weighting |
| dBa(HA1) | - | noise power measured by a set with HA1-receiver weighting |
| dBa0 | - | noise power measured at zero transmission level point |
| dBc | - | dB relative to carrier power |
| DBI | - | Data Bit Inversion |
| dBk | - | dB referred to 1 kilowatt |
| dBm | - | dB referred to 1 milliwatt |
| dBm(psoph) | - | noise power in dBm measured by a set with psophometric weighting |
| DBMS | - | database management system |
| dBmV | - | dB referred to 1 millivolt across 75 ohms |
| dBm0 | - | noise power in dBm referred to or measured at 0TLP |
| dBr | - | power difference in dB between any point and reference point |
| dBrn | - | dB above reference noise |
| dBrnC | - | dBrn noise power measured with C-message weighting |
| dBrnC0 | - | noise power in dBrnC referred to or measured at 0TLP |
| dBrn(f -f ) | - | flat noise power in dBrn 1 2 |
| dBrn(144-line) | - | noise power in dBrn measured by set with 144-line weighting |
| dBv | - | dB relative to 1 V (volt) peak-to-peak |
| dBW | - | dB referred to 1 W (watt) |
| dBx | - | dB above reference coupling |
| dc | - | direct current |
| DCA | - | Defense Communications Agency (now DISA) |
| DCC | - | Digital CamCorder |
| DCC | - | Data Communications Channel |
| DCC | - | Digitally Controlled Capacitors |
| DCD | - | Data Carrier Detect |
| DCE | - | data circuit-terminating equipment |
| DCL | - | direct communications link |
| DCC | - | Digitally Controlled Potentiometers |
| DCPSK | - | Differentially Coherent Phase-Shift Keying |
| DCS | - | Defense Communications System |
| DCT | - | Digital Cable Tuner |
| DCTN | - | Defense Commercial Telecommunications Network |
| DCWV | - | direct-current working volts |
| DDC | - | Display Data Channel [VESA] |
| DDD | - | direct distance dialing |
| DDN | - | Defense Data Network |
| DDR | - | Double Data Rate Memory [SDRAM] |
| DDR2 | - | Double Data Rate II Memory [SDRAM] |
| DDS | - | Digital Data Service |
| DEEC | - | Digital Electronic Engine Control |
| DEFCS | - | Digital Electronic Flight Control System |
| DEL | - | Delete character [ASCII Table] |
| DES | - | Data Encription Standard |
| DESC | - | Defense Electronics Supply Center |
Next section of "D" Abbreviations and Acronyms
