| Acronym | Category | Meaning |
 | CBO | Atmospheric Research Center Acronyms | Congressional Budget Office |
 | CBO | Chemistry Acronyms | Coulomb Born Oppenheimer |
 | CBO | Chemistry Acronyms | Corrected Born-Oppenheimer (in Calcns. For Mol. Complexes) |
 | CBO | Chemistry Acronyms | Crude Born-Oppenheimer (wave Functions) |
 | CBO | US Govt. Acronyms | Congressional Budget Office |
 | CBOA | Chemistry Acronyms | Crude Born-Oppenheimer Approximation |
 | CBOD | Chemistry Acronyms | Carbonaceous Biochemical Oxygen Demand |
 | CBOL | Uncategorized Acronyms | Consortium For The Barcode Of Life |
 | CBOX | Chemistry Acronyms | Coulomb-Born With No Exchange |
 | CBP | Chemistry Acronyms | Combustion By-Product (from Incineration) |
 | CBP | NASA Acronyms | Connector Bracket Power |
 | CBR | Astronomy Acronyms | Cosmic Background Radiation |
 | CBR | Chemistry Acronyms | Cosmic Background Radiation |
 | CBR | Uncategorized Acronyms | Case-Based Reasoning |
 | CBR | US Army Acronyms (Official) | Chemical-Biological-Radiological (see NBC); Charger Battery Relay |
 | CBRA | Chemistry Acronyms | Coastal Barriers Resource Act |
 | CBRF3 | NASA Acronyms | Bromotrifluoromethane (Fire-Extinguishing Material) |
 | CBRN | Uncategorized Acronyms | Chemical |
 | CBRNE | Chemistry Acronyms | Chemical, Biological, Radiological, Nuclear, Explosive |
 | CBRNE | Uncategorized Acronyms | Chemical, Biological, Radiological, Nuclear, Explosive |
 | CBRS | Atmospheric Research Center Acronyms | Coastal Barrier Resources System |
 | CBS | Chemistry Acronyms | Complete Basis Set |
 | CBS | Chemistry Acronyms | Cystathionine Beta-synthase |
 | CBS | Medical Acronyms | Capillary Blood Sugar |
 | CBS | NASA Acronyms | Connector Bracket Signal |
 | CBS | Uncategorized Acronyms | Columbia Broadcasting System - Corps Battle Simulation |
 | CBS-FCI | Chemistry Acronyms | Complete Basis Set-full Configuration Interaction |
 | CBS-QCI | Chemistry Acronyms | Complete Basis Set-quadratic Configuration Interaction |
 | CBSA | Chemistry Acronyms | Chlorobenzenesulfonic Acid |
 | CBSA | NASA Acronyms | Cargo Bay Stowage Assembly |
 | CBSS | Atmospheric Research Center Acronyms | Change Board Support System |
 | CBT | Atmospheric Research Center Acronyms | Computer Based Training |
 | CBT | Uncategorized Acronyms | Cognitive Behaviour Therapy -Combat |
 | CBT | Medical Acronyms (Slang) | Chronic Burger/Biscuit Toxicity (obesity) |
 | CBT | Computer And Internet Acronyms | Computer-Based Training |
 | CBV | NASA Acronyms | Cabin Bleed Valve |
 | CBW | NASA Acronyms | Constant Bandwidth |
 | CBX | Chemistry Acronyms | Coulomb-Born Approxn. With Exchange |
 | CBX | NASA Acronyms | C-Band Transponder |
 | CBXT | Chemistry Acronyms | Community-Based Clinical Trial |
 | CC | Chemistry Acronyms | Closed Cup (Flash Point Test Method) |
 | CC | Chemistry Acronyms | Close Coupling Method (for Atom-molecule Collisions) |
 | CC | Chemistry Acronyms | Combined Cycle |
 | CC | Chemistry Acronyms | Coupled Channel |
 | CC | Chemistry Acronyms | Coupled-cluster (quantum Calcn. Method) |
 | CC | Medical Acronyms | Chief Complaint |
 | CC | NASA Acronyms | Carbon-Carbon |
 | CC | NASA Acronyms | Channel Controller |
 | CC | NASA Acronyms | Chief Counsel (KSC Directorate) |
 | CC | NASA Acronyms | Communications Control |
 | CC | NASA Acronyms | Cost Center |
 | CC | NASA Acronyms | Crew Compartment |
 | CC | NASA Acronyms | Crew(s) Certified |
 | CC | Uncategorized Acronyms | Many |
 | CC | US Military Acronyms | Configuration Control |
 | CC | Computer Acronyms (Common) | Carbon Copy |
 | CC | Business And Finance | Cross Cutting |
 | CC-CI | Chemistry Acronyms | Cluster Corrected-configuration Interaction |
 | CC-CPA | Chemistry Acronyms | Charge-correlated CPA |
 | CC-DQMC | Chemistry Acronyms | Clamped-coordinate Diffusion Quantum Monte Carlo |
 | CC-EH | Chemistry Acronyms | Coupled-cluster Effective Hamiltonian |
 | CC-LRT | Chemistry Acronyms | Coupled-cluster(-based) Linear Response Theory |
 | CC-PV(D,T,Q) | Chemistry Acronyms | Correlation-consistent Polarized (double, Triple, Or Quadruple)-split Valence Basis Set |
 | CC-VTZ | Chemistry Acronyms | Correlation Consistent-valence Triple Zeta (basis Set) |
 | CC/RVDF | Chemistry Acronyms | Codex Committee On Residues Of Veterinary Drugs In Food |
 | CCA | Chemistry Acronyms | Canonical Correspondence Analysis |
 | CCA | Chemistry Acronyms | Channel Coupling Array (quantum Theory For Atoms And Mols.) |
 | CCA | Chemistry Acronyms | Close-coupling Approximation |
 | CCA | Chemistry Acronyms | Convex Constraint Analysis |
 | CCA | Chemistry Acronyms | Copper Chromium Arsenic |
 | CCA | Chemistry Acronyms | Coupled-cluster Approach |
 | CCA | Chemistry Acronyms | Crystalline Cluster Approach (in Electronic Structure Calcns.) |
 | CCA | Chemistry Acronyms | Crystalline Colloidal Array |
 | CCA | NASA Acronyms | Communications Carrier Assembly |
 | CCA | NASA Acronyms | Communications Carrier Assembly |
 | CCA | NASA Acronyms | Contract Change Authorization |
 | CCA | NASA Acronyms | Contract Change Authorization |
 | CCA | NASA Acronyms | Coolant Control Assembly |
 | CCA | Uncategorized Acronyms | Counter Command Activity |
 | CCA | US Military Acronyms | Carrier Controlled Approach |
 | CCA | US Military Acronyms | Circuit Card Assembly |
 | CCA | US Military Acronyms | Critical Characteristics Audit |
 | CCAA | Atmospheric Research Center Acronyms | Canadian Clean Air Act |
 | CCAA | Chemistry Acronyms | Canadian Clean Air Act |
 | CCAB | Atmospheric Research Center Acronyms | CGD Computing Advisory Board |
 | CCAFS | Astronomy Acronyms | Cape Canaveral Air Force Station |
 | CCAFS | NASA Acronyms | Cape Canaveral Air Force Station |
 | CCAFS | NASA Acronyms | Cape Canaveral Air Force Station |
 | CCAM | Chemistry Acronyms | Charge-conserving Approxn. Method (for Quantum Calcns.) |
 | CCAP | Chemistry Acronyms | Cancer Chromosome Aberration Project |
 | CCAP | Chemistry Acronyms | Center For Clean Air Policy |
 | CCAP | Chemistry Acronyms | Climate Change Action Plan |
 | CCAP | Chemistry Acronyms | Crustacean Cardioactive Peptide |
 | CCAR | Atmospheric Research Center Acronyms | Colorado Center For Astrodynamics Research |
 | CCARS | Atmospheric Research Center Acronyms | Computer Controlled Automatic Rain Sampler |
 | CCATS | NASA Acronyms | Command |
 | CCAWG | Atmospheric Research Center Acronyms | Climate Change And Assessment Working Group |
 | CCB | Atmospheric Research Center Acronyms | Center For Capacity Building |
 | CCB | Atmospheric Research Center Acronyms | Change Control Board |
 | CCB | Atmospheric Research Center Acronyms | Configuration Control Board |