| Subject | English | Icelandic |
| comp., MS | 3D | þrívítt (Of, pertaining to, or being an object or image having or appearing to have all three spatial dimensions (length, width, and depth)) |
| comp., MS | 3-D | þrívítt (Of, pertaining to, or being an object or image having or appearing to have all three spatial dimensions (length, width, and depth)) |
| math. | D'Agostino's test | D'Agostino's próf |
| comp., MS | 3-D column chart | Þrívíddarstöplarit (A column chart subtype that compares data points along two axes) |
| comp., MS | 3-D effect | þrívíddaráhrif (A diagramming capability that shows charts in three dimensions) |
| math. | D-optimal design | D-ákjósanlegur hönnun |
| comp., MS | 3-D reference | margvíð tilvísun (A reference to a range that spans two or more worksheets in a workbook) |
| math. | d-separation theorem | d-aðskilnað setningin |
| math. | Dup 2-statistic | almenn fjarlægð Mahalanobis |
| math. | Dup 2-statistic | D ²-tölfræði |
| comp., MS | 3-D walls and floor | þrívíddarveggir og -gólf (The areas surrounding many 3-D chart types that give dimension and boundaries to the chart. Two walls and one floor are displayed within the plot area) |
| math. | Sukhatme d-statistic | Sukhatme d-tölfræði |
| math. | Tajima's D statistic | Tajima's D tölfræði |
| math. | type D region | tegund D svæði |