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ballast

audio pronunciation audio pronunciation
noun
  • heavy material placed in a ship's hold to keep it steady [Barron]
  • heavy material that is placed in the hold of a ship or the gondola of a balloon to enhance stability [Taisha]
  • heavy substance used to add stability or weight [Nandigam]

More word meanings for ballast
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Wiktionary:
ballast @ wiktionary
WordNet:
ballast @ wordnet.princeton.edu
Merriam-Webster Online:
ballast @ M-W.com
MSN Encarta:
ballast @ Encarta
American Heritage Dictionary of the English Language:
ballast @ AHD provided by Yahoo! Education
Answers.com:
ballast @ Answers.com
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