| Acronym | Definition |
|---|
| PSEC | Picosecond |
| PSEC | Puget Sound Engineering Council (Washington) |
| PSEC | Provably Secure Elliptic Curve (public key encryption) |
| PSEC | Public Safety Enterprise Communication (California) |
| PSEC | Purdue Student Education Council (Indiana) |
| PSEC | Plastic Surgery Education Campaign (American Society of Plastic Surgeons) |
| PSEC | Process Systems Engineering Consortium (various universities) |
| PSEC | Pressure Switch End Cap (TacStar) |
| PSEC | Power System Education Committee (IEEE Power Engineering Society) |
| PSEC | Professional Staff Executive Committee (Columbia University) |
| PSEC | Polling Station Electoral Commission (Russian Federation) |
| PSEC | Public Services Executive Committee (Cornell University) |
| PSEC | Please See Embedded Comments (email) |