for a defined duration

USAGE SUMMARY

The phrase "for a defined duration" is correct and usable in written English.
It can be used when specifying a particular time frame for an event, agreement, or condition. Example: "The contract is valid for a defined duration of six months, after which it will be reviewed."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

4 human-written examples

Released HSV-2 survives in the genital tract for a defined duration (1/ c), during which time it can transfer from neurons and infect local epithelial cells.

eLife

There is a continuous exposure to a fixed concentration of the agent for a defined duration (e.g., 24 h) in an ex vivo model, whereas a gradient of concentration in the dynamic in vitro model.

BMC Veterinary Research

Chemical denaturant titrations involve 30 50 samples (typically with volumes of 0.2 1.0 ml) being sequentially loaded by hand into cuvettes and thereafter thermostated for a defined duration before making measurements.

Biochimica et Biophysica Acta - General Subjects

There is currently no detrimental survival effect for treatment for a defined duration (at least 6 months) followed by a treatment break compared with continuous treatment until disease progression.

British Journal of Cancer

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

From the full-length texts obtained, we included all studies that examined patients with an HA and a diagnosed infection of the implant, for whom a defined duration of symptoms or time period from the index implantation to the infection diagnosis was given, who were treated with either one-stage or two-stage revision, and for whom data on occurrence and number of reinfections were available.

Clinical Epidemiology

Generally, such programs have a defined duration: one year, two years, four years, etc. Competency-based education does away with the defined duration and credit hours, replacing time with mastery.

Huffington Post

In addition, for hypothesis-generating purposes, 24 hours was an empirically defined duration for the time-to-treatment analyses for purposes of simple tabular presentation.

Critical Care

We recommend developing a framework for training within which certain skills must be achieved, for example: – clearly defined duration of medical specialty rotations, – allocating medical specialty rotations to a specific training period, – improving the quality of national teaching sessions and examinations.

International Journal of Emergency Medicine

There is no defined duration for the treatment.

Huffington Post

The powder samples are blended in polypropylene and stainless steel mixing containers for defined durations using a tumble blender (T2F Turbula®, Willy A. Bachofen AG — Maschinenfabrik, Switzerland) and then poured into a Faraday cup where charge measurement is performed.

Powder Technology

For episodes that had resolved before the time of the survey, we defined a discrete variable for the duration of the diarrheal episode in days using the difference between the reported dates of episode recovery and episode onset; for episodes still in progress at the time of the survey, we defined duration as the difference between the date of the survey and the reported date of diarrhea onset.

American Journal of Tropical Medicine and Hygiene

Expert writing Tips

Best practice

When using "for a defined duration", ensure the duration is clearly specified elsewhere in the context to avoid ambiguity. For example, "The study will run for a defined duration of six months."

Common error

Avoid using "for a defined duration" without specifying the actual timeframe. Saying "The project is scheduled for a defined duration" is incomplete; specify the duration, such as "The project is scheduled for a defined duration of three weeks."

Linguistic Context

The phrase "for a defined duration" functions as an adverbial phrase modifying a verb or clause. It indicates the extent of time during which an action or state occurs. Ludwig AI confirms its use in specifying timeframes.

Expression frequency: Rare

Frequent in

Science

75%

News & Media

12%

Formal & Business

13%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "for a defined duration" is a grammatically correct phrase used to indicate that something happens or exists for a specific and predetermined period. Ludwig AI's analysis confirms that it is often employed to specify a timeframe in a clear manner. While semantically correct, its use tends to be most frequent in science, news, and formal/business contexts. When employing "for a defined duration", ensuring that the timeframe is clearly specified is important. Alternatives such as "for a specific timeframe" or "for a set period of time" can provide similar precision in different registers.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

for a specific timeframe

Changes the word "defined" to "specific" and "duration" to "timeframe", offering a more casual tone.

for a set period of time

Replaces "defined duration" with "set period of time", emphasizing the established nature of the duration.

for a predetermined length

Uses "predetermined length" instead of "defined duration", highlighting that the duration was decided in advance.

for a fixed term

Employs "fixed term" to indicate a non-changeable duration, often used in contractual contexts.

during a limited time

Shifts the focus to the limitation of time, rather than the definition of the duration.

within a stipulated period

Replaces "defined duration" with a more formal "stipulated period", suggesting an agreement or requirement.

over a finite interval

Uses "finite interval" to imply that the duration has a clear beginning and end.

for a measured span

Emphasizes the measurable aspect of the duration using the word "span".

for a prescribed time

Indicates the duration is set by a rule or instruction.

during a known timeframe

Highlights the certainty and pre-existing knowledge of the timeframe.

FAQs

How can I use "for a defined duration" in a sentence?

Use "for a defined duration" when you want to emphasize that something will happen or exist for a specific and predetermined period. For example, "The warranty is valid "for a defined duration" of one year".

What are some alternatives to "for a defined duration"?

You can use alternatives like "for a specific timeframe", "for a set period of time", or "for a fixed term" to convey a similar meaning.

Is it better to say "defined duration" or "specific duration"?

"Defined duration" and "specific duration" are largely interchangeable, but "defined" implies that the duration has been clearly established, while "specific" simply means it is not general. The choice depends on the context.

What does "defined duration" actually mean?

A "defined duration" refers to a period of time that has a clear beginning and end, and whose length has been determined beforehand. It is often used in contracts, studies, or other situations where the timeframe is important.