Definition of "topsides" [topsides]

• Plural form of topside. (noun)

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• "There's the concrete base with its serrated ice wall, in which we can safely store more than one million barrels of oil; and there's the superstructure (we call it topsides), containing the working and living accommodation, two drilling rigs, cranes, a flare boom and helideck."
• "The breadth of beam was always considerably greater in that day than earlier, or until much later, necessitated by the proportionately greater height ( "topsides"), above water, at stem and stern."
• "Gulf Island's gain also came as the maker of offshore drilling and production platforms said it received a letter of authorization to enter into a contract for the fabrication and integration of the topsides of a major deep-water Gulf of Mexico project."