| Subject | English | Arabic |
| tech. | compaction characteristics | قابلية للدك |
| construct. | compaction of gravel course | دك طبقات الحصى |
| agric., chem. | roll compaction | الدمج الإسطواني |
| environ. | soil compaction An increase in bulk density (mass per unit volume) and a decrease in soil porosity resulting from applied loads, vibration, or pressure. More compacted soils (or other materials) can support greater loads (load-bearing capacity). Bulk density can be increased by controlling the moisture content, compaction forces and treatment procedures, as well as by manipulating the type of material being compacted | رصُّ الأرض |
| soil. | soil compaction | تراص التربة |