A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Ga | Gallium |
| GaAs | Gallium Arsenide |
| GAC | Granular Activated Carbon |
| GAIM | GSM Analog Interface Module |
| GAL | Gate Array Logic |
| GaN | Gallium Nitride |
| GaP | Gallium Phosphide |
| GASAD | Gate And Source And Drain |
| GB | Giga Byte |
| GC | Gas Chromatography; Gravimetric Calibrator |
| GCC | Generic Cell Controller |
| GCD | Gas Chromatography Distillation |
| GCMS | Gas Chromatography Mass Spectroscopy |
| Gd | Gadolinium |
| GD | Glow Discharge |
| GDMS | Glow Discharge Mass Spectrometry |
| GDS | Graphical Design System; Graphical Design Software |
| Ge | Germanium |
| GEM | Generic Equipment Model; Ventura/GEM drawing image format |
| GEMVS | GEM Verification System |
| GES | Generic Equipment Simulator |
| GFAAS | Graphite Furnace Atomic Absorption Spectrometry/spectroscopy |
| GFC | Gas Filter Correlation |
| GFCI | Ground Fault Circuit Interrupter |
| GGG | Gadolinium Gallium Garnet |
| GHz | GigaHertz |
| GIF | Gatan Imaging Filter; CompuServe Graphics Interchange Image Format (pronounced 'jif') |
| giga | 1.00E+9 (1,000,000,000/1; symbolized by the prefix G) |
| GILD | Gas Immersion Laser Doping |
| GLC | Gas Liquid Chromatography |
| GLU | General Logic Unit |
| GLUE | Generally 7400-series chips to glue (connect) VLSI-chips together |
| GMA | Gas Metal Arc (welding) |
| GML | Geospatial Markup Language |
| GND | Ground (voltage level) |
| GNOS | GaN-on-Sapphire |
| GOI | Gate Oxide Integrity; GaAs On Insulator |
| GOSIP | Government Open Systems Interconnection Profile |
| GPE | Gas Phase Etching |
| GPIB | General-Purpose Interface Bus |
| GPRS | General Packet Radio Service |
| GPS | Global Positioning System |
| GRINSCH | GRaded INdex Separate Confinement Heterostructure |
| GSCE | Gas Source Control Equipment |
| GSM | Global Systems for Mobile (communications) |
| GSMBE | Gas Source MBE |
| GSPID | Gain-Scheduled Proportional Integro-Differential |
| GTA | Gas Tungsten Arc (welding) |
| GTO | Gate Turn Off (thyristor) |
| GTS | GEM Test System |
| GUI | Graphical User Interface |
| GWIM | Global Warming Impact Model |
H
| H | Hydrogen |
| Ha | Hahnium |
| HAC | Hands-free Add on Circuit |
| HAP | Hazardous Air Pollutant |
| HARM | High-speed Anti-Radar Missile |
| HASL | Hot Air Solder Leveling |
| HAST | Highly Accelerated Stress Testing |
| HAZCOM | Hazard Communication Standard |
| HB | Horizontal Bridgman (crystal) |
| HBT | Heterojunction Bipolar Transistor |
| HCI | Hot Carrier Injection |
| HCMOS | High-density Complementary Metal-Oxide Semiconductor |
| HCP | Hexagonal Close Packed |
| HCS | Hot-Carrier Suppressed |
| HCT | High-speed CMOS TTL compatible |
| HD | High Density; High Definition |
| HDCP | High Bandwidth Digital Content Protocol |
| HDL | Hardware Description Language |
| HDP | High Density Plasma; Hydrostatic Deformation Potential |
| HDPE | High-Density PolyEthylene |
| HDSD | Hydrogen Defect Shallow Donors |
| HDSL | High (bit rate) Digital Subscriber Line |
| HDTV | High Definition TV |
| He | Helium |
| hecto | 1.00E+2 (100/1; symbolized by the prefix h) |
| HEM | Hydrogenic Effective Mass |
| HEMT | High Electron Mobility Transistor |
| HEPA | High-Efficiency Particulate Air |
| Hf | Hafnium |
| HF | Hydrofluoric acid; High Frequency |
| HFC | Hybrid Fiber/Coax |
| HFET | Heterojunction FET |
| HFI | HyperFine Interaction |
| HFRR | HydroFluoric acid Reprocessor Return system |
| HFS | HyperFine Shift |
| Hg | Mercury |
| HGF | Horizontal Gradient Freeze |
| HGL | Hewlett-Packard Graphics Language image format |
| HIBS | Heavy Ion Backscattering Spectrometry |
| HIC | Hybrid Integrated Circuits |
| HIGFET | Heterojunction Insulated Gate FET |
| HIPOX | HIgh-Pressure OXygen |
| HIPPI | High Performance Parallel Interface |
| HITS | Head-End-in-the-Sky (AT&T) |
| HLF | Horizontal Laminar Flow |
| HMAC | Keyed-Hash Message Authentication Code |
| HMDS | HexaMethylDiSilazane |
| HMIS | Hazardous Materials Inventory Statement |
| HMMP | Hazardous Materials Management Plan |
| HMOS | High-performance MOS; High-density MOS |
| Ho | Holmium |
| HOLZ | Higher-Order Laue Zone |
| HOMER | Hazardous Organic Mass Emission Rate |
| HOMO | Highest Occupied Molecular Orbital |
| HOPG | Highly-Oriented Pyrolitic Graphite |
| HP | High Purity |
| HPC | High Performance (micro) Controller |
| HPCC | High Performance Computing and Communicating |
| HPEM | Hybrid Plasma Equipment Model |
| HPI | High-Pressure Isolation |
| HPL | High Performance Logic |
| HPLC | High-Performance Liquid Chromatography |
| HPM | Hazardous Production Materials; High Purity Metal |
| HPNA | Home Phoneline Network Alliance |
| HPV | High-Pressure Vent |
| HRA | Human Reliability Analysis |
| HREELS | Hi-Res Electron Energy Loss Spectroscopy |
| HREM | Hi-Res (Transmission) Electron Microscopy |
| HRS | Holographic Readout System |
| HRTEM | Hi-Res Transmission Electron Microscopy |
| HSCC | High-Level Serial Communication Controller |
| HSCX | High-Level Serial Communication Controller Extended |
| HSCSD | High Speed Circuit-Switched Data |
| HSMS | High Speed Message Services |
| HTCS | High Tc (critical temperature) Superconductors |
| HTE | High Temperature Electronics; High Temperature Elongation |
| HTH | Head-To-Head |
| HTL | High-Threshold Logic |
| HTML | HyperText Markup Language |
| HTO | High-temperature Oxidation |
| HTRB | High-temperature Reverse Bias |
| HTS | High Temperature Superconductor |
| HTSC | High Temperature Super Conductor |
| http | HyperText Transfer Protocol |
| https | HyperText Transfer Protocol over SSL |
| HTU | Height of Transfer Unit |
| HUPW | Hot UltraPure Water |
| HVAC | Heating, Ventilating, and Air Conditioning |
| HVEM | High-Voltage Electron Microscopy |
| HV-SLIC | High Voltage Subscriber Line Interface Circuit |
| HWHM | Half Width at Half Maximum |
| HY | Hybrid |