## What is a trough?

Troughs are elongated regions where there is low pressure, and they typically occur before a cold front. A trough is often an indicator of coming clouds, showers, or a shift in the direction of the wind. Ridges, in weather terminology, are elongated regions of relatively high pressure.

## What does a trough mean in physics?

The trough of a wave is the point on the medium that exhibits the maximum amount of negative or downward displacement from the rest position.

What does trough mean in chemistry?

A pneumatic trough is a piece of laboratory apparatus used for collecting gases, such as hydrogen, oxygen and nitrogen. Pneumatic troughs require a liquid such as water. Scientists also have used mercury in pneumatic troughs, but usually only for the collection of water-soluble gases.

What is trough in pharmacology?

The trough level is the lowest concentration in the patient’s bloodstream, therefore, the specimen should be collected just prior to administration of the drug. The peak level is the highest concentration of a drug in the patient’s bloodstream.

### What is trough in geography class 9?

a trough is an elongated (extended) region of relatively low atmospheric pressure often associated with fronts.

### What is an example of trough in science?

The definition of a trough is a long and narrow container. An example of a trough is what pigs eat out of. An example of a trough is a long container in which plants grow next to each other. (physics) A minimum point in a wave or an alternating signal.

What is the trough of a wave quizlet?

A trough is the opposite of a crest, so the minimum or lowest point in a cycle. the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz (Hz), corresponding to one crest per second.

What is trough in geography?

A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure. Air in a high pressure area compresses and warms as it descends.

#### What is peak and trough?

Peak and trough levels indicate drug levels in an individual’s body. A peak is the highest level of a medication in the blood, while a trough level indicates the lowest concentration. Troughs of medication concentration occur after the drug has been broken down and metabolized by the body.

#### What is peak and trough used for?

The lowest level of the drug in the patient’s body is called the trough level. The peak for a drug is when the level of the drug in the patient’s body is the highest. To assess drug concentrations during the trough phase, blood should be drawn immediately before the next dose.

What is trough in geography class 7?

The fall of water in a wave is called trough.

What is a trough economics quizlet?

Trough. The low point of real GDP just before it begins to turn upward. peak to peak.