Dictionary.com
Thesaurus.com

sea king

American  

noun

  1. one of the piratical Scandinavian chiefs who ravaged the coasts of medieval Europe.

  2. (initial capital letters) a twin-engine U.S. Navy helicopter for rescue work and antisubmarine warfare.


sea king British  

noun

  1. any of the greater Viking pirate chiefs who led raids on the coasts of early medieval Europe

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of sea king

1575–85; translation of Old Norse sǣkonungr; cognate with Old English sǣcyning