semisubmersible

[ sem-ee-suh b-mur-suh-buh l, sem-ahy- ]
/ ˌsɛm i səbˈmɜr sə bəl, ˌsɛm aɪ- /

noun

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

of, for, or pertaining to a semisubmersible.

Origin of semisubmersible

First recorded in 1960–65; semi- + submersible

Words nearby semisubmersible

semispheric, semispinal muscle of head, semispinal muscle of neck, semispinal muscle of thorax, semistarvation, semisubmersible, semisubmersible rig, semisubterranean, semisulcus, semisweet, semisynthetic