| Subject | English | Maltese |
| met. | addition agent | element ta' lligar |
| met. | addition element | element ta' lligar |
| comp., MS | addition operator | sinjal ta' l-għadd (The + character, used to indicate addition or a positive number) |
| environ. | addition polymer A polymer formed by the chain addition of unsaturated monomer molecules, such as olefins, with one another without the formation of a by-product, as water; examples are polyethylene, polypropylene and polystyrene | polimeru ta' addizzjoni |
| environ. | chemical addition Chemical reaction in which one or more of the double bonds or triple bonds in an unsaturated compound is converted to a single bond by the addition of other atoms or groups | addizzjoni kimika |
| food.ind. | fresh grape must with fermentation arrested by the addition of alcohol | most frisk bil-fermentazzjoni mmewta biż-żieda tal-alkoħol |
| agric. | grape must with fermentation arrested by the addition of alcohol | most tal-għeneb frisk |