| Term | Definition / Meaning / Stand for |
| A |
Ampere |
| AAS |
Atomic Absorption Spectroscopy |
| ACN |
Acetonitrile |
| AFL |
Alternating Field Loop |
| AH |
Atomic Heat |
| AI |
Artificial Intelligence (in materials science) |
| AMD |
Anomalous Magnetic Dipole |
| AMS |
Accelerator Mass Spectrometry |
| AOB |
Ammonia Oxidizing Bacteria |
| APMS |
3-aminopropyl Trimethoxysilane |
| APV |
Absolute Predicted Value |
| AWS |
Advanced Weathering System |
| AZT |
Azidothymidine |
| Ac |
Actinium |
| AcOH |
Acetic Acid |
| Alk |
Alkali |
| BCE |
Boron Concentration Effect |
| BCS |
Bardeen-Cooper-Schrieffer (Theory) |
| BD |
Breakdown Voltage |
| BDF |
Branch Decomposition Function |
| BET |
Brunauer-Emmett-Teller (Theory) |
| BFR |
Brominated Flame Retardants |
| BN |
Boron Nitride |
| BO |
Born-Oppenheimer (Approximation) |
| BOC |
Benzyloxycarbonyl (Protecting Group in Chemistry) |
| BOP |
Basic Oxygen Process |
| BP |
Bandwidth Product |
| BRN |
Bromonaphthalene |
| BSA |
Butane Sulfonic Acid |
| BTB |
Benzotriazole |
| CD |
Circular Dichroism |
| CFE |
Chemical Force Equilibrium |
| CG |
Center of Gravity |
| CGT |
Classical Gauge Theory (in particle physics) |
| CI |
Chemical Ionization |
| CIM |
Coulomb Interaction Matrix |
| CMP |
Chemical Mechanical Polishing |
| CNQ |
Charge Neutral Quasi-particles |
| CNR |
Carbon Nanoribbon |
| CNT |
Carbon Nanotube |
| COOH |
Carboxyl Group (in organic chemistry) |
| CPA |
Coherent Potential Approximation |
| CPD |
Chemical Potential Differential |
| CPM |
Chemical Potential Model |
| CPMG |
Car-Purcell-Meiboom-Gill |
| CPT |
Charge, Parity, Time Symmetry |
| CRM |
Certified Reference Material |
| CS |
Cross Section (in scattering theory) |
| CSC |
Critical Solution Temperature |
| CTE |
Coefficient of Thermal Expansion |
| CVD |
Chemical Vapor Deposition |
| CW |
Continuous Wave (laser) |
| Cr |
Chromium |
| CuO |
Copper(II) Oxide |
| DABCO |
1,4-Diazabicyclo[2.2.2]octane |
| DFO |
Desferrioxamine |
| DIB |
Diisobutylene |
| DIPE |
Diisopropyl Ether |
| DMAA |
Dimethylallylamine |
| DME |
Diethyl Ether |
| DNA |
Deoxyribonucleic Acid |
| DNP |
Dynamic Nuclear Polarization |
| DNPH |
2,4-Dinitrophenylhydrazine |
| DPD |
Diisopropyl Phosphorodithioate |
| DRS |
Diffuse Reflectance Spectroscopy |
| ECM |
Extracellular Matrix |
| EDAX |
Energy Dispersive Analysis of X-rays |
| EDM |
Electro Discharge Machining |
| EDS |
Energy Dispersive Spectroscopy |
| EF |
Electric Field |