trough

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trough

1. a narrow depression either in the land surface, ocean bed, or between two successive waves
2. Meteorol an elongated area of low pressure, esp an extension of a depression
3. Physics the portion of a wave, such as a light wave, in which the amplitude lies below its average value
4. Economics the lowest point or most depressed stage of the trade cycle

trough

[trȯf]
(geology)
A small, straight depression formed just offshore on the bottom of a sea or lake and on the landward side of a longshore bar.
Any narrow, elongate depression in the surface of the earth.
An elongate depression on the sea floor that is wider and shallower than a trench. Also known as submarine trench.
The line connecting the lowest points of a fold.
(meteorology)
An elongated area of relatively low atmospheric pressure; the opposite of a ridge.

trough

A channel used to carry electric conductors.
References in periodicals archive ?
Our 12-foot-long WaterMaster trough holds up to 200 gallons and tips up forward by hand for easy cleanout," says Ora Wengerd, Wengerd Machining & Fabricating, Bertha, Minnesota.
on Tuesday, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) forecaster Benison Estareja said the 'prevailing weather system' was that of the monsoon trough, as no low pressure area or tropical cyclone has been spotted in the Philippine area of responsibility.
I also dug a hole in the soil of each of the troughs and buried a perforated drainage pipe coupled to a section of solid pipe (which stayed above the soil).
Then, the high-speed drill was used to prepare the open-side and hinge-side troughs under the guide of the drilling templates.
Lee-side troughs on the east side of mountain ranges like the Front Range of Colorado put airports under gusty wind conditions with low-level wind shear.
Following user feedback and research, demanding fewer cleaning points and for greater efficiency, Teknomek updated the designs of their wash troughs to ensure the equipment meets the exacting standards of hygiene environments.
Fill the troughs with soil, then add the plants or put potted plants in each trough.
Describe the ability of different dosing protocols to achieve target trough serum concentrations
A week ago, the outlook saw a well-developed trough approaching from the west, extending into our south.
South Africa has chosen the power tower and parabolic troughs as their CSP pioneers.
Multiple troughs in rows make up a collector field, normally aligned along a north-south axis, allowing the mirrors to track the sun throughout the day.
Washington, September 27 ( ANI ): Scientists have been trying to determine the origin of unusual troughs on asteroid Vesta since their discovery just last year.