| Acronym | Meaning |
 | H | Henry - Hydrogen |
| RGBI | Red Green Blue Intensity (ditto) |
| ECM | Electronic Counter-Measures - Enterprise Content Management |
| HBR | Human Behaviour Representation |
| YH | Yoctohenry |
| EEC | European Economic Community (predecessor Of The EU) |
| HORIZON | H?licopt?re D'observation Radar Et D'investigation Sur Zone (French |
| EPO | Erythropoietin |
| IREA | Intermountain Rural Electric Association |
| NOR | Norway (ISO 3166 Trigram) |
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