- 1[transitive, intransitive] dredge (something) (for something) to remove mud, stones, etc. from the bottom of a river, canal, etc. using a boat or special machine, to make it deeper or to search for something They're dredging the harbor so that larger ships can use it. They dredge the bay for gravel.
- 2[transitive] dredge something (up) (from something) to bring something up from the bottom of a river, etc. using a boat or special machine waste dredged (up) from the seabed
- 3 [transitive] dredge something in/with something to cover food lightly with sugar, flour, etc. Dredge the top of the cake with confectioner's sugar. Phrasal Verbsdredge somethingup
NAmE//drɛdʒ//Verb Forms present simple I / you / we / they dredge
he / she / it dredges
past simple dredged
-ing form dredging