Trough may refer to:
In science Trough (geology), a long depression less steep than a trench Trough (meteorology), an elongated region of low atmospheric pressure Trough (physics), the lowest point on a wave Trough level (medicine), the lowest concentration of a medicine is present in the body over time Langmuir-Blodgett trough, a laboratory instrument
In politics Trough (economics), the lowest turning point of a business cycle as metaphor for political corruption, in the contexts of crony capitalism, nepotism, and public economics
Other uses Bread trough or dough trough, rectangular receptacle with a shallow basin, used in breadmaking Trough (barony), a historical barony in County Monaghan, Ireland Trough (food) or manger, a container for animal feed Watering trough, a receptacle of drinking water for domestic and non-domestic livestock Water trough, a trough used to supply water to steam locomotives. Battle of the Trough, a 1756 skirmish of the French and Indian War in West Virginia Sleightholme Beck Gorge - The Troughs, a Site of Special Scientific Interest in the Teesdale district of south-west County Durham, England The Trough, a gorge carved by the South Branch Potomac River in West Virginia "Down the trough", as used by Donegal Gaelic football club Cill Chartha Trough, an old word for an inkwell
See also Trow, a type of cargo boat Troff, a document processing system developed by AT&T for the Unix operating system "Tropho-", a Greek root meaning to feed or grow Trough urinal, a long urinal for many men