semisubmersible rig
British
noun
-
Sometimes shortened to: semisubmersible.
(in the oil industry) a type of drilling platform that floats supported by underwater pontoons, with much of its structure below the water line for stability in high winds: usually used only for exploratory drilling for oil or gas
"Collins English Dictionary — Complete & Unabridged"
2012 Digital Edition
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
