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semisubmersible

[sem-ee-suh b-mur-suh-buh l, sem-ahy-] /ˌsɛm i səbˈmɜr sə bəl, ˌsɛm aɪ-/
noun
1.
Also called semisubmersible 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
2.
of, for, or pertaining to a semisubmersible.
Origin
1960-1965
1960-65; semi- + submersible
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for semisubmersible
  • When fitted with a drilling package, they may be called semisubmersible drilling rigs.
  • Two types of semisubmersible rigs are the bottle-type semisubmersible and the column-stabilized semisubmersible.
  • semisubmersible drilling rigs are moored to the ocean bottom, but have some propulsion capability.
  • The marine riser connector would not disengage in order that the semisubmersible rig could be moved off location.
  • Several years ago an anchor-handling vessel was trying to recover a lost anchor for a semisubmersible drilling rig.
  • Self-propelled semisubmersible vessels are maritime vessels used by traffickers to transport illicit drugs.

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