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  2. Trough - Wikipedia

    en.wikipedia.org/wiki/Trough

    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

  3. Trough (meteorology) - Wikipedia

    en.wikipedia.org/wiki/Trough_(meteorology)

    A trough is an elongated region of relatively low atmospheric pressure without a closed isobaric contour that would define it as a low pressure area.

  4. Crest and trough - Wikipedia

    en.wikipedia.org/wiki/Crest_and_trough

    A trough is the opposite of a crest, so the minimum or lowest point of the wave. When the crests and troughs of two sine waves of equal amplitude and frequency intersect or collide, while being in phase with each other, the result is called constructive interference and the magnitudes double (above and below the line).

  5. Manger - Wikipedia

    en.wikipedia.org/wiki/Manger

    Modern livestock trough near Empire Ranch, Arizona.. A manger or trough is a rack for fodder, or a structure or feeder used to hold food for animals. The word comes from the Old French mangier (meaning "to eat"), from Latin mandere (meaning "to chew").

  6. Watering trough - Wikipedia

    en.wikipedia.org/wiki/Watering_trough

    A watering trough on a stock route, Australia A Bills horse trough in Sebastian, Victoria, Australia Sheep watering trough, Idaho, 1930s. A watering trough (or artificial watering point) is a man-made or natural receptacle intended to provide drinking water to animals, livestock on farms or ranches or wild animals.

  7. Shortwave (meteorology) - Wikipedia

    en.wikipedia.org/wiki/Shortwave_(meteorology)

    Shortwave trough with associated vorticity. A shortwave or shortwave trough is an embedded kink in the trough / ridge pattern. Its length scale is much smaller than that of and is embedded within longwaves, which are responsible for the largest scale (synoptic scale) weather systems.

  8. Monsoon trough - Wikipedia

    en.wikipedia.org/wiki/Monsoon_trough

    The monsoon trough is a portion of the Intertropical Convergence Zone in the Western Pacific, [1] [2] as depicted by a line on a weather map showing the locations of minimum sea level pressure, [1] and as such, is a convergence zone between the wind patterns of the southern and northern hemispheres.

  9. Trough (geology) - Wikipedia

    en.wikipedia.org/wiki/Trough_(geology)

    In geology, a trough is a linear structural depression that extends laterally over a distance. Although it is less steep than a trench , a trough can be a narrow basin or a geologic rift . These features often form at the rim of tectonic plates .

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