Water ballast

Wa´ter bal´last

(Naut.) Water confined in specially constructed compartments in a vessel's hold, to serve as ballast.

water ballast

[′wȯd·ər ‚bal·əst] (naval architecture) Water confined to double-bottom tanks, peak tanks, or other designated compartments, for use in obtaining satisfactory draft, trim, or stability.

AcronymsSeewine bar

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