noun
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A long, narrow container, open on top, for feeding or watering animals.
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Any similarly shaped container.
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A short, narrow canal designed to hold water until it drains or evaporates.
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(colloquial) An undivided metal urinal (plumbing fixture)
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(Canada) A gutter under the eaves of a building; an eaves trough.
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(agriculture, Australia, New Zealand) 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.
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A long, narrow depression between waves or ridges; the low portion of a wave cycle.
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(economics) A low turning point or a local minimum of a business cycle.
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(meteorology) A linear atmospheric depression associated with a weather front.