| Subject | English | Norwegian Bokmål |
| environ. | chemical reduction Chemical reaction in which an element gains an electron | reduksjon |
| environ. | cost reduction The lessening or lowering in the amount of money incurred or asked for in the exchange of goods and services | kostnadsreduksjon |
| math. | dimension reduction | dimensjon reduksjon |
| environ. | emission reduction The act or process of limiting or restricting the discharge of pollutants or contaminants, such as by setting emission limits or by modifying the emission source | utslippsreduksjon |
| environ. | emission reduction banking a system for recording qualified air emission reductions for later use in bubble, offset or netting transactions (emission trading); A system for recording qualified air emission reductions for later use in bubble, offset, or netting transactions. Plant complexes that reduce emissions substantially may "bank" their "credits" or sell them to other industries | emisjonsreduksjonsvirksomhet |
| environ. | noise reduction The reduction in the sound pressure level of a noise, or the attenuation of unwanted sound by any means | støyreduksjon |
| environ. | oxidation-reduction An oxidizing chemical change, where an element's positive valence is increased (electron loss), accompanied by a simultaneous reduction of an associated element (electron gain) | oksidasjonsreduksjon |
| environ. | pollutant reduction All measures aimed at reducing pollutants often through physical or chemical removal of toxic, or potentially toxic, materials | forurensningsreduksjon |
| math. | reduction of data | komprimering av data |
| comp., MS | reduction principle | reduksjonsprinsipp (A method for specifying the consumption of sales forecast requirements and purchase forecast requirements that are used in master scheduling) |
| environ. | risk reduction Any act, instance or process lowering the probability that harm will come to an area or its population as the result of some hazard | risikoreduksjon |
| environ. | waste gas reduction Reduction of the quantity of gaseous emissions in the atmosphere, from motorvehicles, industrial and heating plants, etc. by the adoption of clean technologies, the effectiveness of process operations, the improvement of fuel quality and the installment of chimney stacks high enough to ensure the dispersion of gases | avgassreduksjon |
| environ. | waste reduction Practices that reduce the amount of waste generated by a specific source through the redesigning of products or patterns of production or consumption | avfallsreduksjon |
| environ. | waste water reduction The act or process of lessening the volume of used or spent water that is discharged from homes, businesses or industries | avløpsminimering |
