Ballast-tank Definition
noun
One of several external or internal tanks fitted in submarines; when filled with seawater they allow the boat to submerge; when emptied using compressed air buoyancy is restored and the vessel rises towards the surface. Auxiliary ballast tanks within the pressure hull allow the submarine to be trimmed.
Wiktionary
Other Word Forms of Ballast-tank
Noun
Singular:
ballast-tank
Plural:
ballast-tanks
Find Similar Words
Find similar words to ballast-tank using the buttons below.