Found 2 items, similar to oil slick.
English → English (WordNet) Definition: oil slick oil slick n : a thin film of oil floating on top of water (especially crude oil spilled from a ship)
English → English (gcide) Definition: oil slick oil slick \oil" slick`\ n. A layer of oil floating on water; -- usually petroleum or fuel oil which has leaked from a ship. [PJC]