trough

A long, narrow container, open on top, for feeding or watering animals.

“One of Hank's chores was to slop the pigs' trough each morning and evening.”

Any similarly shaped container.

A short, narrow canal designed to hold water until it drains or evaporates.

“There was a small trough that the sump pump emptied into; it was filled with mosquito larvae.”

A gutter under the eaves of a building; an eaves trough.

“The troughs were filled with leaves and needed clearing.”

A channel for conveying water or other farm liquids (such as milk) from place to place by gravity; any ‘U’ or ‘V’ cross-sectioned irrigation channel.

A long, narrow depression between waves or ridges; the low portion of a wave cycle.

“The buoy bobbed between the crests and troughs of the waves moving across the bay.”

A linear atmospheric depression associated with a weather front.

To eat in a vulgar style, as if from a trough.

“he troughed his way through three meat pies.”