propwash deflection unit en · NOUN
Meanings
- 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.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| propwash deflection units | Number=Plur | lexicographic |