| DAB | De Acetyl Baccatin |
| DABCO | 1,4-Di Aza-Bi Cyclo[2.2.2] Octane |
| DABO | Dihydro Alkyloxy Benzyl Oxopyrimidine (NNRTI/AIDS) |
| DAC | Drug Affinity Complex |
| DAC | Disease-Associated Conformation (Proteins) |
| DAC | Disposable Aseptic Connector (BioPharma Mfg.) |
| DAC | Diamond Anvil Cell |
| DACH | Di Amino Cyclo Hexane |
| DACH | Deutschland Austria Confederation Helvetique |
| DAF | Direct Acting Fibrinolytic |
| DAF | Decay Accelerating Factor |
| DALM | Di Azo Lumino Melanin |
| DAMCH | Di Amino Methyl Cyclo Hexane |
| DAO | De Asphalted Oil |
| DAO | Di Amine Oxidase |
| DAP | Dibasic Ammonium Phosphate |
| DAP | Di Ammonium Phosphate |
| DAP | Di Amino Pentane |
| DAPT | Dual Anti-Platelet Therapy |
| DAQ | Demethyl Asterri Quinone |
| DARA | Dual Acting Receptor Antagonist |
| DARPA | Defense Advanced Research Projects Agency (USA) |
| DART | Direct Analysis in Real Time |
| DASC | Dihydroxy Aluminium Sodium Carbonate |
| DAT | Des Amino Tyrosine (HO-C6H4-(CH2)2-CO2H) |
| DAT Pharma | Dual Action Tablet |
| DATB | Dioxa Aza Tri Borinane |
| DBA | Di Benzylidene Acetone |
| DBD | Di-tert-Butyl Dicarbonate |
| DBDE | Deca Bromo Diphenyl Ether |
| DBE | Di Basic Ester (solvent) |
| DBF | demineralized bone fiber |
| DBM | Demineralized Bone Matrix |
| DBNE | 2,2-Di Bromo-2-Nitro Ethanol |
| DBNPA | 2,2-Dibromo-3-nitrilopropionamide (Water Treatment) |
| DBS | Di Benzylidene Sorbitol |
| DBS Brain | Deep Brain Stimulation |
| DBTDL | Di Butyl Tin Di Laurate |
| DBU | 1,8-Diaza Bicyclo[5.4.0] Undecene-7 |
| DC | Direct Current |
| DC | Dendritic Cells |
| DCB | Di Chloro diamino Benzene |
| DCB Cardio | Drug-Coated Balloon |
| DCC | Di Cyclohexyl Carbodiimide |
| DCC | Dynamic Combinatorial Chemistry |
| DCD | Dialysis-related Carnitine Deficiency |
| DCDMT | N,N-DiChloro-2,2-DiMethylTaurine |
| DCE | Double-substituted cationic Cellulose Ether |
| DCFAP | Di Chloro Fluoro Acetyl Peroxide |
| dCHPM | dehydrated Complete Human Placental Membrane |
| DCL | Des Carboethoxy Loratadine |
| DCM | Di Chloro Methane |
| DCM | Dilated Cardio Myopathy |
| DCMIT | 4,5-Di Chloro-2-Methyl-3-Iso Thiazolone (Biocide) |
| DCOIT | 4,5-Di Chloro-2-(n-Octyl-4-Iso Thiazolin-3-one (Biocide) |
| DCP | Di Chloro Phenol |
| DCP | Di Chloro Propanol |
| DCPD | Di Cyclo Penta Diene |
| DCR | Digital Cardiac Rehabilitation |
| DCS | De Compression Sickness |
| DCS | Digital Control Systems |
| DCT | Decentralized Clinical Trial |
| DCTMDS | Di Chloro Tetra Methyl Di Silane |
| DD | Dodecane Dioic acid |
| DD | Digital Dermatitis (Veterinary>Bovine/Cows) |
| DDBSA | Dodecyl Benzyl Sulfonic Acid |
| DDC | direct data capture |
| DDDA | DoDecaneDioic Acid |
| DDG | Distiller's Dried Grain |
| DDH | 1,3-Dimethylol-5,5-Dimethyl Hydantoin (CH2O Donor) |
| DDH Ortho. | Developmental Dysplasia of the Hip |
| DDI | Di Deoxy Inosine |
| DDM | Direct Digital Manufacturing |
| DDM | n-Dodecyl-Beta-D-Maltoside (Detergent) |
| DDM | Data Driven Medicine |
| DDR | DNA Damage Response |
| DDS | Dimethyl Dichloro Silane [(Me)2(Cl)2Si] |
| DE | Germany |
| DEA | Di Ethanol Amine |
| DEA | Drug Enforcement Administration (USA GOV.) |
| DEAB | Di Ethyl Amine Benzophenone |
| DEAE | Di Ethyl Amino Ethyl |
| DEAF | 9,9-bis[(2,5-Di Ethyl-4-Amino)phenyl] Fluorene |
| DEB | Drug Eluting Balloon |
| DEB Derma. | Dystrophic Epidermolysis Bullosa |
| dECM | decellularized ECM |
| DED | Dutch Elm Disease |
| DED Eye | Dry Eye DIS. |
| DEET | N,N-Di Ethyl-m-Toluamide (insect repellent) |
| DEG | Di Ethylene Glycol |
| DEGDN | Di Ethylene Glycol Di Nitrate |
| DEHP | Di-(2-ethylhexyl) phthalate |
| DEK | Di Ethyl Ketone |
| DEMS | Di Ethoxy Methyl Silane |
| DEP | Di Ethyl Phthalate |
| DERA | 2-DEoxyRibose-5-phosphate Aldolase |
| DES | Drug-Eluting Stents |
| DESI | Desorption Electro Spray Ionization (MS) |
| DETA | Di Ethylene Tri Amine |
| DETOSU | 3,9-Di(Ethylidene)-2,4,8,10-TetraOxaSpiro [5.5]Undecane |
| DEV | DEVelopment |
| DEX | Digital Employee eXperience |
| DF | Dendro Fullerene |
| DFI | Diabetic Foot Infections |
| DFMO | Di Fluoro Methyl Ornithine |
| DFS | disease free survival |
| DFSP | Derma Fibro Sarcoma Protuberans |
| DFT | Density Functional Theory |
| DG | Distributed Generation |
| DHA | Di Hydroxy Acetone |
| DHA | Doco Hexaenoic Acid |
| DHA | Docosa Hexanoic Acid |
| DHACM | DeHydrated Human Amnion/Chorion Membrane |
| DHAP | Di Hydroxy Acetone Phosphate |
| DHB | 09-Di Hydro-13-acetyl Baccatin |
| DHBA | 2,3-Di Hydroxy Benzoic Acid |
| DHBHA | 2,6-Di Hydroxy Benzo Hydroxamic Acid |
| DHDS | Di Hydroxy Diphenyl Sulfone |
| DHE | Di Hydro Ergotamine |
| DHEA | De Hydro Epi Androsterone |
| DHF | Dengue Hemorrhagic Fever |
| DHFR | Di Hydro Folate Reductase |
| DHOD | Di Hydro Orotate Dehydrogenase (fungicide identification assay) |
| DHT | 5a-Di Hydro Testosterone |
| DI | Direct Imaging |
| DIAG | Diagnostics |
| DIAM | Diameter |
| DIB | Deutsche Industrie Biotechnologie |
| DIBAL | Di Iso Butyl ALuminium (chloride) |
| DIBH | deep inspiration breath hold |
| DICOM | Digital Imaging and COmmunications in Medicine. |
| DIEA | Di Isopropyl Ethyl Amine |
| DIME | Dual Intercalating Molten Electrolyte (ionic liquid electrolyte battery) |
| DINMR | Direct Injection Nuclear Magnetic Resonance (combinatorial NMR analysis) |
| DINP | Di Iso Nonyl Phthalate |
| DIP | Debtor In Possession |
| DIR | Diffused Infra Red |
| Dis | Disease/Disorder |
| DISTN | DISTILLATION |
| DIT | 2-n-Decyl Iso Thiazolin-3-one (Biocide) |
| DIY | Do It Yourself |
| DK | DenmarK |
| DKFZ | German Cancer Research Center |
| DKR | Dynamic Kinetic Resolution |
| DL | Deep Learning |
| DLA | DL Accelerator |
| DLBCL | Diffuse LBCL |
| DLC | Diamond Like Carbon |
| DLD | Deterministic Lateral Displacement |
| DLP | Data Loss Prevn. |
| DM | Dextro Methorphan |
| DMA | N,N-Di Methyl Acrylamide |
| DMAC | Di Methyl ACetamide |
| DMAEA.MCQ | Di-Me Amino-Et Acrylate Me Chloride Quaternary |
| DMAP | Di Methyl Amino Pyridine |
| DMARD | Disease-Modifying Anti-Rheumatic Drugs |
| DMC | Double Metal Cyanide (polyether polyol mfg catalyst) |
| DMC | Data Monitoring Committee |
| DMC | Double Metal Catalyst |
| DMD | Duchenne Muscular Dystrophy |
| DMDMOS | Di Methyl Di Meth Oxy Silane |
| DMDO | Di Mercapto Dioxa Octane |
| DMDS | Di Mercapto Diethyl Sulfide |
| DME | Di Methyl Ether |
| DME Eye | Diabetic Macular Edema |
| DMEN | 2-(DiMethyl-amino)EthylamiNe |
| DMET | Drug Metabolizing Enzymes and Transporters |
| DMF | Di-Me Formamide |
| DMF | Di Me Furan (2,5-Di Me Furan) |
| DMFC | Direct Methanol Fuel Cells |
| DMH | Di Methyl Hydantoin |
| dMMR | deficient MMR |
| DMN | Di Methyl Naphthalene |
| DMO | Dermal Micro Organs |
| DMP | Dimethylamino Methyl Phenol |
| DMP | Di Me Pyrazole |
| DMPDA | 2,5-Di Methyl (p-Phenylene Di Amine) |
| DMSO | Di Me Sulf Oxide |
| DMT | Di Methyl Terephthalate |
| DMT | Di Methyl Tetralin |
| DNAPL | Dense Non-Aqueous Phase Liquids |
| DNMT | DNA Methyl Transferase (Oncology) |
| DNNDSA | Di Nonyl Naphthalene Di Sulfonic Acid |
| DNP | 2,4-Di Nitro Phenyl |
| DNP | Dynamic Nuclear Polarization |
| DNT | Di Nitro Toluene |
| DO2 | Delivery O2 |
| DOD | Dept. Of Defense (USA Federal Gov.) |
| DODPC | 1,2-Di(2,4-OctaDecadienoyl)-3-PhosphatidylCholine |
| DOE | Department Of Energy (USA) |
| DOE | Design Of Experiments |
| DON | De Oxy Nivalenol |
| DonIsleCel | Donor Islet Cell |
| DOP | Developer Oxidation Product (photography) |
| DOPAC | 3,4-Dihydr Oxy Phenyl Acetic Acid |
| DOPE | Di Oleoyl Phosphatidyl Ethanolamine |
| DOPE-GA | Di Oleyl Phosphatidyl Ethanolamine - Glutaric Acid |
| DOSS | Di Octyl Sodium Sulfosuccinate. |
| DOT | Diffractive Optics Technology |
| DOXP | De Oxy Xylulose Phosphate (Malaria parasite pathway) |
| DP | Dipeptidyl Peptidase |
| DPBS | Dulbecco s Phosphate Buffered Saline |
| DPC | Diphenyl Phosphinous Chloride |
| DPD | Deoxy Pyri Dinoline |
| DPF | Diesel Particulate Filter |
| DPG | Di Phospho Glycerate |
| DPG | Di Propylene Glycol |
| DPI | Dry Powder Inhaler |
| DPI | Discovery Partners Intl. |
| DPM | Di Pivaloyl Methane |
| DPN | Dip Pen Nanolithography |
| DPN | Diabetic Peripheral Neuropathy |
| DPP | Di Phosphono Phenylalanine |
| DPP | Diketo Pyrrolo Pyrrole (pigment) |
| DPP | Di Phenyl Phosphine |
| DPP | Di Peptidyl Peptidase |
| DPPB | Di Phenyl Phosphinic Butane |
| DPPC | Di Palmitoyl Phosphatidyl Choline |
| DPPD | Di Phenyl Phenylene Diamine |
| DPPE | Di Palmitoyl Phosphatidyl Ethanolamine |
| dPR | diastolic Pressure Ratio |
| DPS | Dynamic Pressure Sensing |
| DQE | detective quantum efficiency |
| DQSVE | Dynamic Quantification of Social-Visual Engagement |
| DR | Delayed Release |
| DR Cardio | Dual Right |
| DR Eye | Diabetic Retinopathy |
| DRAM | Dynamic Random Access Memory |
| DRAW | Direct Read After Write |
| DRC | Design Rule Check |
| DREAM | Downstream Regulatory Element Antagonistic Modulator |
| DRG | dorsal root ganglion |
| DRSP | Drug-Resistant Streptococcus Pneumoniae |
| DRSP WH Wo | DRoSPirenone |
| DS | Dextran Sulfate |
| DS | Dravet Syndrome |
| DSC | Differential Scanning Calorimetry |
| DSC | Dye Solar Cell |
| DSDA | 3,3'-4,4'-Diphenyl Sulfone tetracarboxylic Di Anhydride |
| DSE | Di Styryl Ethane |
| DSG | Downhole Steam Generation |
| DSHP | Direct Synthesis of Hydrogen Peroxide |
| DSIDA | Disodium Iminodiacetate |
| DSM | Deutsche Sammlung von Mikroorganismen |
| DSMB | Data Safety Monitoring Board |
| DSN | Digital Self-Neuromodulation |
| DSP | Digital Signal Processor |
| DSP | Distal Sensory Polyneuropathy |
| DSP AD. | Demand Side Platform |
| DSPE | Di Stearoyl Phosphatidyl Ethanolamine |
| DSPM | Data Security Posture Management |
| DSR | Direct Sodium Removal |
| dsRNA | Double Stranded RNA |
| DSS | Dengue Schock Syndrome |
| DSS | Dextran Sulfate Sodium |
| DSSC | Dye Sensitized Solar Cell |
| DTA | Diphtheria Toxin A |
| DTA Cardio | Descending Thoracic Aorta |
| DTBDC | Di Tert Butyl Di Carbonate |
| DTC | Di Thio Carbamate |
| DTD | Difficult-to-Treat Depression |
| DTDMAC | Dihydrogenated Tallow Di Methyl Ammonium Chloride (cationic surfactant) |
| DTE | Desamino Tyrosyltyrosine Ethyl (Ester) |
| DTH | Delayed Type Hypersensitivity |
| DTH | Desamino Tyrosyltyrosine Hexyl (Ester) |
| DTI | Dye Transfer Inhibition (laundry detergent) |
| DTI | Direct Thrombin Inhibitor |
| DTI | Direct Tension Indicator |
| DTM | Direct To Metal |
| DTM | digital terrain modelling |
| DTP | Di Thiolo Pyrrolone |
| DTPA | Diethylene Triamine Pentaacetic Acid |
| DTR | Dynamic Thermodynamic Resolution |
| DTS | Distributed Temperature Sensing |
| DTSA | Di Thio Salicylic Acid |
| DTT | Di Thio Threitol |
| DTx | Digital Therapeutics |
| DUB | De UBiquitylase |
| DUV | Deep UV |
| DVA | Dynamic Vulcanized Alloy |
| DVD | Digital Versatile Disc |
| DVD | Digital Video Disk |
| DVE | Di Vinyl Ether |
| DVS | Di Vinyl Siloxane |
| DVT | Deep Vein Thrombosis |
| DVZ | Dermal Visceral Zones |
| DWI | diffusion-weighted imaging |
| DWNT | Double Walled carbon Nano Tube |
| DXA | Dual energy X-ray Absorptiometry |