"Rotgut" Natural Recordings by Native Speakers
Extremely bad or low-quality liquor, especially whiskey or vodka.
Rotella is a brand of automotive oil, but the word can also refer to a European surname, specifically Italian and Greek.
Rotenone is a naturally occurring chemical insecticide derived from the roots of certain plants, such as the Derris tree. It is a non-selective insecticide that works by inhibiting the energy-producing process in cells, killing insects and other organisms by suffocation. Rotenone is used to control insect pests, particularly in agriculture and in aquariums. It is also used in some fisheries to remove insects and other unwanted organisms from the water.
Rothera Island, also known as Rothera, is a small Antarctic island lying south of Adelaide Island, in the Errera Channel, which connects it to the Antarctic mainland in Graham Land, Antarctica.