| Acronym | Meaning |
 | IHH | Idiopathic Hypogonadotropic Hypogonadism |
| RF | Radio Frequency - Receptive Field (neurophysiology) |
| TY | Tahitian Language (ISO 639-1 Code) |
| DL | Dexter's Laboratory |
| NISCAP | NSA Information System Certification And Accreditation Program |
| PT | Picotesla |
| BATTERS | Bisei Asteroid Tracking Telescope For Rapid Survey |
| NHB | No Holds Barred Radio (Link) |
| PPLI | Precise Participant Location & Identification |
| EMC | Electric Membership Corporation - Electromagnetic Compatibility - Electro-Motive Corporation - European Muon Collaboration - Evergreen Marine Corporation |
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