noun
Meaning 1
A device placed over or behind the propeller of a boat to deflect its prop wash downward as a very effective form of agitation dredging, primarily used by salvors to remove mud or sand from shallow-water shipwrecks.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided