| D-CI | Double Excitations In Configuration Interaction | - | Computer Acronyms(common) |
| D-SIC | Degeneracy-dependent Self-interaction Correction | - | Computer Acronyms(common) |
| D.I. | Direct Injection [of Diesel Engines] | - | Computer Acronyms(common) |
| D/DBP | Disinfection And Disinfection Byproducts | - | Computer Acronyms(common) |
| D5W | Dextrose 5% In Water | - | Computer Acronyms(common) |
| DAA | Days After Anthesispar | - | Computer Acronyms(common) |
| DAA | Diacetone Alcoholpar | - | Computer Acronyms(common) |
| DAB | Diaminobenzidine (usually 3,3') | - | Computer Acronyms(common) |
| DAB | Dipole Adapted Basis (wave Function) | - | Computer Acronyms(common) |
| DAC | Derived Air Concentration | - | Computer Acronyms(common) |
| DAC | Diamond Anvil Cell | - | Computer Acronyms(common) |
| DAD | Diode Array Detector | - | Computer Acronyms(common) |
| DADI | Direct Analysis Of Daughter Ions | - | Computer Acronyms(common) |
| DADMAC | Diallyldimethylammonium Chloride | - | Computer Acronyms(common) |
| DAEM | Distributed Activation Energy Model | - | Computer Acronyms(common) |
| DAF | Decay-accelerating Factor | - | Computer Acronyms(common) |
| DAF | Diallyl Fumarate | - | Computer Acronyms(common) |
| DAF | Dissolved Air Flotation | - | Computer Acronyms(common) |
| DAF | Distributed Approximating Functional (in Study Of Quantal Wave-packet Propagation) | - | Computer Acronyms(common) |
| DAFLOW | Diffusion Analogy Flow [model] | - | Computer Acronyms(common) |
| DAFNE | Double Annular Factory For Nice Experiments | - | Computer Acronyms(common) |
| DAFS | Diffraction Anomalous Fine Structure | - | Computer Acronyms(common) |
| DAHS | Data Acquisition And Handling System | - | Computer Acronyms(common) |
| DAIM | Deformed Atoms In Molecules | - | Computer Acronyms(common) |
| DAIP | Diallyl Isophthalate | - | Computer Acronyms(common) |
| DAIRS | Differential Absorption Infrared Sensor | - | Computer Acronyms(common) |
| DAL | Defect Action Level | - | Computer Acronyms(common) |
| DAM | Military Applications Branch (French; Direction Des Applications Militaires) | - | Computer Acronyms(common) |
| DAM | Diallyl Maleate | - | Computer Acronyms(common) |
| DANTE | Delays Alternating With Nutations For Tailored Excitation | - | Computer Acronyms(common) |
| DAP | Diallyl Phthalate | - | Computer Acronyms(common) |
| DAP | Distributed Array Processor | - | Computer Acronyms(common) |
| DAPC | Department Of Air Pollution Control | - | Computer Acronyms(common) |
| DAPK | Death-associated Protein Kinase | - | Computer Acronyms(common) |
| DAPS | Disappearance Potential Spectroscopy | - | Computer Acronyms(common) |
| DARA | Disposal Area Remedial Action | - | Computer Acronyms(common) |
| DARC | Description | - | Computer Acronyms(common) |
| DARC | Dielectric Antireflection Coating | - | Computer Acronyms(common) |
| DARMA | Deterministic Autoregressive Moving Average | - | Computer Acronyms(common) |
| DARPA | Defense Advanced Research Projects Agency (Department Of Defense) | - | Computer Acronyms(common) |
| DART | Developmental And Reproductive Toxicology Database (NLM) | - | Computer Acronyms(common) |
| DARTAB | Dose And Risk Assessment Tabulation | - | Computer Acronyms(common) |
| DAS | Days After Sowing | - | Computer Acronyms(common) |
| DAS | Dendrite Arm Spacing | - | Computer Acronyms(common) |
| DAS | Direct Absorption Spectroscopy | - | Computer Acronyms(common) |
| DAS | Double Antibody Sandwich | - | Computer Acronyms(common) |
| DAS | Dynamic Angle Spinning | - | Computer Acronyms(common) |
| DASCO | Discriminant Analysis With Shrunken Covariances | - | Computer Acronyms(common) |
| DASD | Direct Access Storage Device | - | Computer Acronyms(common) |
| DASH | Dynamic Allele-specific Hybridization | - | Computer Acronyms(common) |
| DASHO | Designated Agency Safety And Health Official | - | Computer Acronyms(common) |
| DASP | Discontinuous Activated Sludge Process | - | Computer Acronyms(common) |
| DAST | Diethylaminosulfur Trifluoride | - | Computer Acronyms(common) |
| DATBP | Diallyl Tetrabromophthalate | - | Computer Acronyms(common) |
| DAU | Drug Abuse Urine | - | Computer Acronyms(common) |
| DAVES | Desorption And Vapor Extraction System | - | Computer Acronyms(common) |
| DAVINS | Direct Analysis Of Very Intricate Nmr Spectra | - | Computer Acronyms(common) |
| DAW | Dry Active Waste | - | Computer Acronyms(common) |
| DAXRT | Double-axis Reflection X-ray Topography | - | Computer Acronyms(common) |
| DBD | DNA Binding Domain | - | Computer Acronyms(common) |
| DBD | Dielectric Barrier Discharge | - | Computer Acronyms(common) |
| DBDPO | Decabromodiphenyl Oxide | - | Computer Acronyms(common) |
| DBE | Deep Basin Experiment | - | Computer Acronyms(common) |
| DBE | Distorted-wave Born Exchange | - | Computer Acronyms(common) |
| DBEP | Bis(2-butoxyethyl) Phthalate | - | Computer Acronyms(common) |
| DBF | Dibutyl Fumarate | - | Computer Acronyms(common) |
| DBI | Diazepam Binding Inhibitor | - | Computer Acronyms(common) |
| DBL | Diffusive Boundary Layer | - | Computer Acronyms(common) |
| DBMS | Data Base Management System | - | Computer Acronyms(common) |
| DBP | Dibutyl Phthalate | - | Computer Acronyms(common) |
| DBP | Disinfection By Product | - | Computer Acronyms(common) |
| DBPR | Microbiological And Disinfection Byproducts Regulations | - | Computer Acronyms(common) |
| DBR | Distributed Bragg Reflector | - | Computer Acronyms(common) |
| DBRA | Division Of Biometry And Risk Assessment | - | Computer Acronyms(common) |
| DBRTS | Double-barrier Resonant Tunneling Structure | - | Computer Acronyms(common) |
| DBS | Doppler Broadening Spectroscopy | - | Computer Acronyms(common) |
| DBS | Dibutyl Sebacate | - | Computer Acronyms(common) |
| DBTS | Ductile-to-brittle Transition Strain | - | Computer Acronyms(common) |
| DBTT | Ductile-to-brittle Transition Temperature | - | Computer Acronyms(common) |
| DC | Blood-air Distribution Coefficient | - | Computer Acronyms(common) |
| DC | Direct Current | - | Computer Acronyms(common) |
| DCA | Detrended Correspondence Ordination Analysis | - | Computer Acronyms(common) |
| DCA | Discriminant Component Anal. | - | Computer Acronyms(common) |
| DCA | Dressed-cluster Approximation (in Band-structure Calcns.) | - | Computer Acronyms(common) |
| DCAD | Dietary Cation-anion Difference | - | Computer Acronyms(common) |
| DCASV | D.c. Anodic Stripping Voltammetry | - | Computer Acronyms(common) |
| DCB | Distorted Coulomb-Born Approxn. | - | Computer Acronyms(common) |
| DCB | Double-cantilever Beam | - | Computer Acronyms(common) |
| DCBA | Drift Chamber Beta-ray Analyzer | - | Computer Acronyms(common) |
| DCBA | Distorted-coupling Born Approximation | - | Computer Acronyms(common) |
| DCBOX | Distorted Coulomb-Born No-exchange Approxn. | - | Computer Acronyms(common) |
| DCBX | Distorted Coulomb-Born Exchange Approxn. | - | Computer Acronyms(common) |
| DCC | Dextran-coated Charcoalpar | - | Computer Acronyms(common) |
| DCC | Deleted In Colorectal Cancer | - | Computer Acronyms(common) |
| DCC | Discharge Consent Conditions | - | Computer Acronyms(common) |
| DCCA | Drying Control Chemical Additive | - | Computer Acronyms(common) |
| DCCC | Droplet Counter Current Chromatography | - | Computer Acronyms(common) |
| DCCI | Dissociation-consistent Configuration Interaction | - | Computer Acronyms(common) |
| DCEL | Direct Current Electroluminescent | - | Computer Acronyms(common) |
| DCEN | Direct Current Electrode Negative | - | Computer Acronyms(common) |
