dredging
n. uncountable C1 Advanced US //ˈdɹɛdʒɪŋ// UK //dɹˈɛdʒɪŋ// dredg·ing
n. the process of cleaning out the bottom of a river or lake by scooping up mud and sand. It is often done to make the water deeper for ships.
n. the removal of sediment and debris from the bottom of lakes, rivers, or harbours. Often involves heavy machinery to maintain navigable depths or to extract minerals.
The city started dredging the harbour to allow larger ships to enter.
Environmental groups expressed concern that the dredging of the riverbed would disturb local fish habitats.
Extensive dredging was required to clear the silt that had accumulated after the flood, ensuring the canal remained viable for commercial transport.
Usage
Often functions as a gerund noun describing the industrial or environmental process.