a radius of around

USAGE SUMMARY

The phrase "a radius of around" is correct and usable in written English.
It can be used when describing an approximate distance or measurement from a central point. Example: "The park has a radius of around five miles, making it accessible to many residents."

✓ Grammatically correct

Science

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

Waste contamination reaches a radius of around 60km".

The Guardian

The primary is a white main sequence star of spectral type A0V that is around 2.91 times the mass of the Sun and 57 times as luminous, and is surrounded by a debris disk out to a radius of around 60 astronomical units (AU).

Wikipedia

Finally, 40% of residents reported a TV transmitter within a radius of around 4 km.

BMJ Open

We confirmed that the quasiparticle current in the junctions was predominated by resonant tunneling via localized states with a radius of around 1 nm in the barrier.

Physica C: Superconductivity

For comparison the Airy disk should have a radius of around 277 nm for the given experimental parameters.

EPJ Quantum Technology

The Venezuelan government has claimed the drones used were DJI Matrice 600s, each carrying approximately 1kg of C4 plastic explosive and, when detonated, capable of causing damage at a radius of around 50 meters.

TechCrunch

Human-verified similar examples from authoritative sources

Similar Expressions

53 human-written examples

Earlier studies on the aggregation behavior of a P(MeOx30- b-NOx7 b-MeOx26) triblock copolymer using fluorescence correlation spectroscopy revealed micelles with a hydrodynamic radius of around 5.6 nm in deionized water.

ACS Nano

We will work around 900 MHz since then a single mode (TM010) cavity actuator has an internal radius of around 12 cm and so can accommodate larger liquid volumes.

Applied Petrochemical Research

Those amino acids located in a radius of 10Å around the occupying amino acid were considered to define a particular pocket [21] and are shown together with their corresponding MBP associated-fragment in Table 1 and Fig. 1B.

Plosone

Fluorine atoms have a small covalent radius of around 60 picometers, similar to those of its period neighbors oxygen and neon.

Wikipedia

They have an array of cuticular nanostructures conical protuberances with a spacing and height of about 200 nm, tipped with a spherical cap with a radius of curvature of around 25 45 nm on the transparent panes of their wings.

Wikipedia

Expert writing Tips

Best practice

When using "a radius of around", ensure the context clearly indicates what the radius is being measured from, such as a point, object, or area.

Common error

Avoid using "a radius of around" when you have an exact measurement. If the radius is known precisely, state the exact value instead of using an approximation.

Linguistic Context

The phrase "a radius of around" functions as a prepositional phrase modifying a noun, typically indicating the approximate extent or range from a central point. It is commonly used to describe spatial dimensions, as seen in the Ludwig examples.

Expression frequency: Uncommon

Frequent in

Science

60%

News & Media

20%

Wiki

20%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "a radius of around" is a prepositional phrase used to express an approximate distance or extent from a central point. According to Ludwig, it's grammatically correct and suitable for various contexts, although it appears more frequently in scientific sources. When using this phrase, ensure the context clarifies the reference point for the radius. Ludwig AI analysis confirms its acceptability, with suggested alternatives including "approximately a radius of" and "a radius of about". Be mindful not to use it when an exact measurement is available. While the phrase is correct, opting for specific numbers improve overall precision and clarity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

approximately a radius of

Adds emphasis on the approximation of the radius.

a radius of approximately

Similar to the query, but uses "approximately" instead of "around".

a radius of roughly

Replaces "around" with "roughly", indicating an estimation.

a radius of about

Replaces "around" with "about", implying an approximation.

a radius in the vicinity of

Uses "in the vicinity of" to suggest a less precise measurement.

a radius in the neighborhood of

Similar to "in the vicinity of" but slightly more informal.

a radius close to

Indicates the radius is not exact but near a specific value.

a radius on the order of

Suggests the radius is generally near a certain magnitude.

a radius estimated at

Highlights that the radius is a calculated estimation.

a radius averaging

Implies the radius is an average value.

FAQs

How can I use "a radius of around" in a sentence?

Use "a radius of around" to indicate an approximate distance or extent from a central point. For example, "The exclusion zone had a radius of around 30 kilometers".

What are some alternatives to "a radius of around"?

You can use alternatives like "approximately a radius of", "a radius of approximately", or "a radius of about".

Is it appropriate to use "a radius of around" in scientific writing?

Yes, it is acceptable to use "a radius of around" in scientific writing when an exact measurement is not available or necessary. However, consider using more precise language if possible.

What's the difference between "a radius of around" and "a radius of exactly"?

"A radius of around" indicates an approximate measurement, while "a radius of exactly" signifies a precise and specific measurement.