| Acronym | Meaning |
 | OCR | Optical Character Recognition |
 | CTEB | Carcinogenesis And Toxicologic Evaluation Branch |
 | ITC | Interagency Testing Committee (TSCA) |
 | FTC | Federal Trade Commission |
 | LSS | Lindhard-Scharff-Schiott Theory |
 | ARAS | Atomic Resonance Absorption Spectroscopy |
 | OPA | Optical Parametric Amplifier |
 | BWEN | Brillouin-Wigner (second-order Perturbation Theory With) Epstein-Nesbet (energy Denominators) |
 | TRS | Total Reduced Sulfur |
 | TCOD | Total Chemical Oxygen Demand |