| Abbreviation | Definition |
|---|---|
| CCTM | Coastal Council of Teachers of Mathematics |
| CD | Cluster of Differentiation |
| CD | Clusters of Differentiation |
| CD | Common Denominator |
| CDAM | Centre For Discrete And Applicable Mathematics |
| CDAM | Centre for Discrete and Applied Mathematics |
| CDCU | Correlated-Dimension Correlated-Uniqueness |
| CDE | Continuous Distribution of Ellipsoids |
| CDF | Constructible Differentially Finite |
| CDF | Cumulative Distribution Function |
| CDFC | Concavity of Distribution Function Condition |
| CDN | Continental Decimal Notation |
| CDS | Central Difference Scheme |
| CE | Contrasting Elements |
| CEBR | Complex Equivariant Bordism Ring |
| CECAT | Center of Excellence in Computation Algebra and Topology |
| CECM | Centre for Experimental and Constructive Mathematics |
| CEEM | Center for Excellence and Equity in Mathematics |
| CEM | Conditional Excluded Middle |
| CEME | Center for Enhancement of Mathematics Education |