| Symbol | Description | Uses |
| DATA4TEM | 4 | |
| DBUG_EXCH_VEC | 37 | |
| ddot | 2 | |
| DEBUG_DIAG_CG2D | 4 | |
| defined | 1350 | |
| DEVEL_FLT_EXCH2 | 11 | |
| DIAG_MNC_COORD_NEEDSWORK | 2 | |
| DIAGNOSTICS_HAS_PICKUP | 3 | |
| DIAGST_MNC_NEEDSWORK | 2 | |
| DIAGSTATS_REGION_MASK | 3 | |
| DIC_BIOTIC | 31 | |
| DIC_BOUNDS | 4 | |
| DIC_NO_NEG | 4 | |
| DISABLE_MULTIDIM_ADVECTION | 9 | |
| DISABLE_RBCS_MOM | 1 | |
| DISABLE_RSTAR_CODE | 29 | |
| DISABLE_SEAICE_OBCS | 2 | |
| DISABLE_SIGMA_CODE | 12 | |
| DISCONNECTED_TILES | 2 | |
| dnrm2 | 6 | |
| DO_PTRACERS_HERE | 5 | |
| dscal | 3 | |
| dsum | 2 | |
| DXC_CONST | 1 | |
| DXC_FX | 1 | |
| DXC_FY | 1 | |
| DXF_CONST | 1 | |
| DXF_FX | 1 | |
| DXF_FY | 1 | |
| DXG_CONST | 1 | |
| DXG_FX | 1 | |
| DXG_FY | 1 | |
| DXV_CONST | 1 | |
| DXV_FX | 1 | |
| DXV_FY | 1 | |
| DYC_CONST | 1 | |
| DYC_FX | 1 | |
| DYC_FY | 1 | |
| DYF_CONST | 1 | |
| DYF_FX | 1 | |
| DYF_FY | 1 | |
| DYG_CONST | 1 | |
| DYG_FX | 1 | |
| DYG_FY | 1 | |
| DYNAMIC | 5 | |
| DYNAMICS_GUGV_EXCH_CHECK | 1 | |
| DYU_CONST | 1 | |
| DYU_FX | 1 | |
| DYU_FY | 1 |