are retained within

USAGE SUMMARY

The phrase "are retained within" is correct and usable in written English.
It can be used to describe something that is kept or stored inside a particular space or context. Example: "The important documents are retained within the secure vault to ensure their safety."

✓ Grammatically correct

Science

Encyclopedias

News & Media

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Reproduction is viviparous (that is, fertilized eggs are retained within the body).

Encyclopedia Britannica

They are ovoviviparous (that is, eggs are retained within the body until they hatch) and produce an average of 10 offspring at a time.

Encyclopedia Britannica

Using three-dimensional CT scanning, they visualized the annual high- and low-density growth bands that are retained within the massive coral skeletons and measured historical skeletal growth rates relative to sea surface temperatures from 1925 to 2008.

Encyclopedia Britannica

Notably, tungsten species are retained within the anodic films.

Surface and Coatings Technology

Fewer [3H] polar metabolites are retained within the CRABPI−/− cells compared to the wild-type cells.

Archives of Biochemistry and Biophysics

Intratendinous PRP injections are retained within the tendon, and primarily distributes longitudinally with minimal cross-sectional spread.

Journal of Experimental Orthopaedics

The common Z mutant (Glu342Lys) of α1-antitrypsin results in the formation of polymers that are retained within hepatocytes.

Journal of Molecular Biology

These molecules are retained within the intravascular space to a greater degree than pure crystalloids, owing to their higher oncotic pressure.

Annals of Intensive Care

Previous studies had shown that larvae of C. sapidus and Uca spp. are exported to the coastal ocean, while larvae of H. angustifrons are retained within the estuary.

Estuarine, Coastal and Shelf Science

It is the stability of the different materials within the repository environment that controls the duration for which radionuclides are retained within the near field.

Waste Management Series

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

They should be retained, within financial reason.

The New York Times - Sports

Expert writing Tips

Best practice

When using the phrase "are retained within", ensure that the context clearly specifies what is doing the retaining. For example, "Nutrients are retained within the soil by the root system".

Common error

Avoid using "are retained within" when describing abstract concepts that are not physically contained. Instead of saying "Values are retained within the company culture", consider "Values are reflected in the company culture" or "Values are upheld by the company culture".

Linguistic Context

The phrase "are retained within" functions as a passive verb construction, indicating that certain elements or objects are being kept or preserved inside a defined space or context. It's frequently found in descriptive contexts, as shown in the Ludwig examples.

Expression frequency: Very common

Frequent in

Science

84%

Encyclopedias

8%

News & Media

3%

Less common in

Formal & Business

3%

Wiki

2%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "are retained within" is a grammatically correct and frequently used expression, particularly in scientific and technical contexts. Ludwig AI confirms its validity, highlighting its function as a passive verb construction that conveys the idea of something being kept or preserved inside a defined space. It's important to consider the formality of the phrase, as more informal alternatives like "are kept inside" might be appropriate in certain situations. As evidenced by the numerous examples in Ludwig, this expression is common in scientific literature and encyclopedic entries, emphasizing its role in precise and descriptive writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

are kept inside

This alternative is a more straightforward and less formal way of saying something is kept within a boundary or space.

are preserved in

This alternative emphasizes the aspect of maintaining something in its original state within a given environment.

are maintained in

This phrase focuses on the continued existence or upkeep of something within a specific condition or location.

are held inside

This alternative emphasizes the act of holding or containing something physically within a certain space.

are stored within

This variation suggests a more organized or deliberate placement of something inside a defined area.

are enclosed by

This phrase highlights the surrounding or encapsulating nature of the containment.

are encompassed within

This alternative suggests a broader inclusion or coverage within a larger context or system.

are contained by

This alternative points to the presence of something as one of the elements inside of some container.

are secured in

This option stresses that something is protected or fastened so it can't escape from inside of a container.

are sheltered within

This alternative indicates something is protected from the outside world inside a container or container-like structure.

FAQs

How can I use "are retained within" in a sentence?

The phrase "are retained within" indicates that something is kept or preserved inside something else. For example, "The original characteristics "are retained within" the updated design".

What phrases can I use instead of "are retained within"?

Alternatives to "are retained within" include phrases like "are kept inside", "are preserved in", or "are maintained in", depending on the specific nuance you want to convey.

Is it more formal to say "are retained within" or "are kept inside"?

"Are retained within" is generally more formal than "are kept inside". The former is often used in scientific, technical, or legal contexts, while the latter is more common in everyday language.

What is the difference between "are retained within" and "are contained within"?

While both phrases suggest enclosure, "are retained within" implies that something is deliberately kept or preserved inside, whereas "are contained within" simply indicates that something is located inside something else.