| Acronym | Meaning |
| POR | Proposed Operational Requirement |
| HCF | Highest Common Factor |
| GLC | Gas-liquid Chromatography |
| PM | Panama (FIPS 10-4 Country Code) -Perry Mason - Phase Modulation - Post Meridiem (Latin After Noon) - Prime Minister - Project Manager -Saint Pierre And Miquelon (ISO 3166 Digram) |
| CISPR | Comit? International Sp?cial Des Perturbations Radio?lectriques (Special International Committee On Radio Interference) |
| WACC | Weighted Average Cost Of Capital (accounting) |
| NS | Nanosecond |
| ADRG | Arc-second Raster Chart (ARC) Digitized Raster Graphics |
| G8 | Assistant Chief-of-Staff |
| IANAL | I Am Not A Lawyer |