| Subject | English | Spanish |
| radio | 2 1/2-D computer generated image | imagen de dos dimensiones y media generada por ordenador |
| radio | 1-D prediction | predicción unidimensional |
| health. | D1 receptor | receptor D1 |
| comp., MS | 1-D shape | forma 1D (Either a straight line you draw or a shape that has a beginning point and ending point and can be glued between two shapes to connect them) |
| food.ind. | D-glucono-1,5-lactone | D-glucono-1,5-lactona |
| food.ind. | D-glucono-1,5-lactone | delta-lactona del ácido D-glucónico |
| food.ind. | D-glucono-1,5-lactone | glucono-delta-lactona |
| food.ind. | D-glucono-1,5-lactone | gluconolactona |
| med. | 1,25-dihydroxyvitamin D | 1,25-dihidroxivitamina D |
| med. | D1-trisomy syndrome | síndrome de Patau |
| el. | logic-1 d-c noise margin | margen de ruido c.c. lógico 1 |
| polit. | Unit D1 | Prensa y Comunicación Interna y Externa |
| gen. | Unit D1 | Unidad D1 |