from The Century Dictionary and Cyclopedia
- Having four screws: said of turbine-propelled vessels, so equipped.
Sorry, no etymologies found.
She was known as “the Big U,” an affectionate nickname for the biggest, sleekest American luxury liner plying the North Atlantic, a quadruple-screw turbine steamship that since her maiden voyage in 1952 had proudly retained the Blue Riband as the world’s fastest liner, averaging more than thirty-two knots and surpassing forty knots in occasional bursts of record speed.
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