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semisubmersible

[ sem-ee-suhb-mur-suh-buhl, sem-ahy- ]

noun

  1. Also called semisubmersible rig. a self-propelled barge that is mounted on partially submerged legs supported by underwater pontoons, rides at anchor, and serves as a work base and living quarters in deep offshore drilling operations.


adjective

  1. of, for, or pertaining to a semisubmersible.

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Word History and Origins

Origin of semisubmersible1

First recorded in 1960–65; semi- + submersible

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semistarvationsemisubmersible rig