| Abbreviation | Definition |
|---|---|
| SDFT | Shifted Discrete Fourier Transform |
| SDMSCue | Sparse Distributed Memory for Small Cues |
| SDMT | Stanford Diagnostic Mathematics Test |
| SDP | Semi-Definite Programming |
| SDR | Symmetrical Double Rectangle |
| SDS | standard deviation score |
| SE | Scalar Enhanced |
| SE | Sides and Ends |
| SE | Simplicial Exact |
| SE | Single Ended |
| SE | Structured Expression |
| SE | Symmetry Equivalent |
| SE | The Successor of E |
| SEAMS | Summer Enrichment in Academics in Mathematics and Science |
| SEb | Standard Error of the slope |
| SEC | Secant |
| SECH | Hyperbolic Secant |
| SECME | Science Engineering Communication Mathematics And Enhancement |
| SECME | Science Engineering Communications And Mathematics Enrichment |
| SECME | Science Engineering Communications Mathematics And Enrichment |