| Acronym | Meaning |
 | JDEM | Joint Dark Energy Mission |
| PL | Ice Pellets (new Style METAR Code) -petalitre -Phase Line (Co-ordination Line) -Poland (ISO 3166 And FIPS 10-4 Country Code Digram) |
| OMT | Object Model Template |
| BGS | Bristol Grammar School - British Geographical Survey |
| XIX | Nineteen (in Roman Numerals) |
| BEL | Belgium (ISO 3166 Trigram) |
| HMS | Helmet-mounted Display - Her Majesty's Ship (Royal Navy) |
| SIMAC | Semantic Interaction With Music Audio Contents |
| ISS | International Shorebird Survey (North America) - International Space Station |
| VEN | Venezuela (ISO 3166 Trigram) |
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