Troughs

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."