| catálogo | catálogo m por materias/temas subject catalogue |
| extracción | extracción f de materias primas raw material extraction |
| gris | materia f/sustancia f gris (anat.) grey matter (cerebral) |
| inanimado | materia f inanimada inanimate matter |
| índice | índice m de materias subject index |
| mineral | materias f pl primas minerales mineral raw materials |
| base | raw material base reserva f de materias primas |
| dry | dry basis/matter (of a substance) (food) extracto m seco, materia f seca |
| extraction | raw material extraction extracción f de materias primas |
| faecal | faecal matter (form.) materia f fecal, heces f pl |
| faecal | faecal specimen muestra f de materia fecal |
| food | food for thought materia f para reflexionar |
| inanimate | inanimate matter materia f inanimada |
| material | (raw) material materia f prima |
materia
