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oil slick

a smooth area on the surface of water caused by the presence of oil.
Origin of oil slick
1885-90 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for oil-slick
Historical Examples
  • The oil-slick left behind by his wake was so heavy that, even in the failing light, it was visible for several miles.

    Sea-Hounds Lewis R. Freeman
British Dictionary definitions for oil-slick

oil slick

a mass of floating oil covering an area of water, esp oil that has leaked or been discharged from a ship
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
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