| Acronym | Meaning |
| ERV | Endogenous RetroVirus |
| LRPE | Long-Range Planning Element |
| SAD | Seasonal Affective Disorder - Situational Awareness Display |
| SSBN | Nuclear-Powered Ballistic Missile Submarine (US Navy Hull Classification) |
| PA | Pascal - Protactinium |
| DSTL | British Defence Science And Technology Laboratory |
| ME | Maine (postal Symbol) -Mechanical Engineer[ing] - Medical Examiner - Middle East -Middle East Airlines (IATA Code) -Memory Effect - Myalgic Encephalomyelitis |
| ICZN | International Code Of Zoological Nomenclature - International Commission On Zoological Nomenclature |
| ASCAP | American Society Of Composers |
| MM | Megametre |