each fourth hour

USAGE SUMMARY

The phrase "each fourth hour" is correct and usable in written English.
It can be used to describe a recurring event or action that takes place every four hours. Example: "The medication should be taken each fourth hour to ensure its effectiveness."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified similar examples from authoritative sources

Similar Expressions

60 human-written examples

Mean ± standard deviation of data collected at first, second and fourth hour of each step.

Critical Care

Blood gas analyses were performed at baseline, 15th minute, first hour, fourth hour and sixth hour after SI.

Critical Care

This difference in VCO2, though quantitatively small, was, however, statistically significant at the first, third and fourth hours of each step (see Figure  3), but not at the 2nd.

Critical Care

Eight blood samples were drawn each day (every third hour) on 8 days of the protocol and analyzed with respect to IL-6 and TNF-α.

Brain, Behavior, and Immunity

Each week, the first hour focuses on cooking, food labels, marketing, shopping strategies.

Los Angeles Times

The optical density of dissolved crystals is then read in each well within the first hour.

BMC Biotechnology

Blood cultures were taken at baseline, 15 minutes after randomization, which is after each RM for the first hour, and last blood culture was taken after 60 minutes from the fourth RM.

Critical Care

The surviving sepsis guidelines aim to improve outcomes in children with severe sepsis, and recommend resuscitation for signs of shock with fluid boluses followed by vasoactive infusions, and appropriate antibiotics, each delivered within the first hour of presentation [ 6, 7].

Critical Care

One hundred times each second, 24 hours a day, every day, each of these sensors records seismic data.

Stanford University

However, the extra intake of ethanol was limited to the first hour of each reaccess period.

Alcohol

The first hour of each session will be devoted to broadening student's perspective on science policy.

Cornell University

Expert writing Tips

Best practice

When instructing someone to take medication or perform a task repeatedly, clarify if "each fourth hour" means starting immediately or after a four-hour delay.

Common error

Avoid using "each fourth hour" when you mean something lasting four hours. Instead, specify that an event has a duration of four hours.

Linguistic Context

The phrase "each fourth hour" functions as an adverbial phrase specifying frequency or interval. Although grammatically correct according to Ludwig AI, its usage is less common than alternatives.

Expression frequency: Missing

Frequent in

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Formal & Business

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Less common in

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Ludwig's WRAP-UP

In summary, the phrase "each fourth hour" is grammatically correct but infrequently used. Ludwig AI confirms its grammatical validity. More common and clearer alternatives, such as "every four hours" or "at four-hour intervals", are generally preferred. Given the lack of real-world examples, it's crucial to ensure clarity and avoid ambiguity when using this phrase. When writing, remember to differentiate frequency from duration to prevent misinterpretation.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every four hours

Replaces "each" with "every" for a more common phrasing.

once every four hours

Adds "once" for emphasis, making the frequency explicit.

at four-hour intervals

Uses a more formal term, "intervals", to indicate the recurring time period.

every four hours consecutively

Adds "consecutively" to stress the uninterrupted sequence of the time frame.

at four hourly periods

Uses the noun "periods" instead of the adjective "hour".

four hours apart

Focuses on the separation between occurrences.

four times per day

Specifies the frequency per day instead of the hourly interval.

each four hour cycle

Replaces "hour" with cycle

on a four-hour schedule

Emphasizes the structured nature of the recurring event.

every quarter of a day

Expresses the time frame as a fraction of a day.

FAQs

How can I rephrase "each fourth hour" for clarity?

For clearer communication, consider using phrases like "every four hours" or "at four-hour intervals" instead of "each fourth hour".

Is there a difference between "each fourth hour" and /s/"every four hours"?

While both phrases convey the same meaning, "every four hours" is more commonly used and easily understood.

When is it appropriate to use "each fourth hour" in writing?

You can use "each fourth hour" when providing instructions or describing a recurring event that happens every four hours, although clearer alternatives exist.

Are there any formal alternatives to "each fourth hour"?

Yes, consider using the phrase "at four-hour intervals" as a more formal and precise alternative.