oil slick

US /ˈɔɪl slɪk/
UK /ˈɔɪl slɪk/
"oil slick" picture
1.

plama ropy, wyciek ropy

a layer of oil floating on water, especially one that has leaked from a ship or been discharged as waste

:
The environmental disaster was caused by a massive oil slick from the tanker.
Katastrofa ekologiczna została spowodowana przez ogromną plamę ropy z tankowca.
Birds covered in an oil slick are a tragic sight.
Ptaki pokryte plamą ropy to tragiczny widok.