| Acronym | Meaning |
 | UBT | Urea Breath Test |
 | SPA | Shielded-potential Approxn. (in Electronic Structure) |
 | AID | Agency For International Development |
 | RISA | RDNA Internal Spacer Analysis |
 | UMO | Unmodified Molecular Orbital |
 | CSP | Cathodic Stripping Potentiometry |
 | ASRL | Atmospheric Sciences Research Laboratory |
 | REP | Rotating Electrode Process |
 | CHORUS | CERN Hybrid Oscillation Research Apparatus |
 | ACTH | Adrenocorticotrophic Hormone (reg:9003-56-9) |