| Term | Definition / Meaning / Stand for |
| EFM |
Electrostatic Force Microscopy |
| EG |
Engineering Graphite |
| EIT |
Electrical Impedance Tomography |
| EMAS |
Engineered Material Arresting System |
| EMD |
Electromagnetic Diffraction |
| EPR |
Effective Permeability Ratio |
| ESF |
Elastic Stress Field |
| ESR |
Electron Spin Resonance |
| ET |
Eddy Current Testing |
| ETP |
Electrolytic Tough Pitch |
| FBR |
Fluidized Bed Reactor |
| FCG |
Fatigue Crack Growth |
| FCS |
Fiber Composite Structure |
| FDM |
Fused Deposition Modeling |
| FEA |
Finite Element Analysis |
| FESEM |
Field Emission Scanning Electron Microscopy |
| FIB |
Focused Ion Beam |
| FLIM |
Fluorescence Lifetime Imaging |
| FLT |
Fracture Limit Testing |
| FM |
Failure Mode |
| FPA |
Focal Plane Array |
| FPR |
Fracture Process Region |
| FR4 |
Flame Retardant 4 |
| FTF |
Frictional Temperature Field |
| GA |
Genetic Algorithm |
| GC |
Grain Coarsening |
| GCP |
Global Compliance Program |
| GDOES |
Glow Discharge Optical Emission Spectroscopy |
| GFRC |
Glass Fiber Reinforced Concrete |
| GID |
Generalized Interpolation Differential |
| GIS |
Grain Boundary Interfacial Structure |
| GISS |
Generalized Interface Stress State |
| GLO |
General Load Optimization |
| GLP |
Good Laboratory Practice |
| GND |
Grain Number Density |
| GPC |
Gel Permeation Chromatography |
| GPD |
Grain Profile Distribution |
| GRA |
Growth Rate Analysis |
| GSE |
Global Standardization Effort |
| GSL |
Grain Size Limit |
| GTR |
Glass Transition Rate |
| GVD |
Group Velocity Dispersion |
| HAA |
High-Angle Anisotropy |
| HCF |
High Cycle Fatigue |
| HEDM |
High-Energy Diffraction Microscopy |
| HLB |
Hydrophilic-Lipophilic Balance |
| HMI |
Human-Machine Interface |
| HMX |
High-Molecular-Weight Crosslinking |
| HMX |
Her Majesty Explosive |
| HRC |
Rockwell Hardness C Scale |
| HRS |
High-Resolution Spectroscopy |
| HRT |
High-Resolution Tomography |
| HRTEM |
High-Resolution Transmission Electron Microscopy |
| HSA |
High-Speed Alloy |
| HV |
Hardness Value |
| IBC |
Interfacial Boundary Condition |
| IBE |
Ion Beam Etching |
| ICL |
Ion-Charged Layer |
| ICP |
Inductively Coupled Plasma |
| IDE |
Interdiffusion Experiment |
| IMA |
Isotopic Mass Analysis |
| IPE |
Ion Plasma Etching |
| IPF |
Inverse Pole Figure |
| IPP |
Ion Positioning Precision |
| IQR |
Interquartile Range |
| IR |
Infrared Spectroscopy |
| ISE |
Ion Selective Electrode |
| ISF |
Interstitial Solid Solution |
| IVD |
Induction Vacuum Deposition |
| IVD |
Ion Vapor Deposition |