external region

USAGE SUMMARY

The phrase "external region" is correct and usable in written English.
It can be used to refer to an area or space that is outside of a defined boundary or limit, often in geographical, scientific, or technical contexts. Example: "The researchers focused on the external region of the galaxy to study the effects of dark matter."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Usually, a bounding box delimits the external region.

EURASIP Journal on Image and Video Processing

Let (Theta^{c}) be the external region outside the unit circle.

Boundary Value Problems

It was noted that data of the external region is not needed in this study.

Journal of Petroleum Science and Engineering

The membrane-proximal external region (MPER) of HIV-1 gp41 is an attractive target for vaccine development.

Virology

Vaccine immunogens capable of re-eliciting these membrane proximal external region (MPER -like antibodies MPER -likee antibodiesmaynent to be successful.

Immunity

However, the broadly neutralizing antibodies (BnAbs) 2F5 and 4E10, targeting the highly conserved membrane proximal external region (MPER) of HIV-1, are two promising tools for vaccine development.

Vaccine

One example is the external region of a cell membrane, known as the glycocalyx, which is dominated by a complex milieu of glycosylated molecules.

Comprehensive Biomaterials

Consequently, the proposed method was used to estimate gas migration, production profile of external region and material balance calculation in shared reservoirs.

Journal of Petroleum Science and Engineering

The potential obeys the Poisson equation in the internal region and the linearized Poisson-Boltzmann equation in the external region, coupled through appropriate boundary conditions.

Journal of Computational Physics

In the external region we also have div B = div (μH) = 0, so in a region of constant permeability μ the potential ϕ is a solution of the Laplace equation.

Earth, Planets and Space

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

Then, they define internal and external regions and extract data to compare one to the other.

EURASIP Journal on Image and Video Processing

Expert writing Tips

Best practice

When using "external region" in scientific writing, clearly define the boundaries or context to avoid ambiguity. For example, specify if you're referring to the "external region" of a cell, a geographical area, or a defined system.

Common error

Avoid using "external region" without specifying what it is external to. For instance, instead of saying 'changes in the external region', specify 'changes in the external region of the cell membrane'.

Linguistic Context

The phrase "external region" functions primarily as a noun phrase, typically serving as a subject, object, or complement within a sentence. As Ludwig AI's examples illustrate, it denotes a specific area or zone located outside a defined boundary or reference point.

Expression frequency: Very common

Frequent in

Science

98%

Formal & Business

1%

News & Media

1%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "external region" is a grammatically sound and frequently used term, particularly within scientific and technical contexts. Ludwig AI indicates that its primary function is to precisely describe a spatial location outside a defined boundary. While alternatives such as "outer zone" or "peripheral area" exist, "external region" maintains a level of formality suitable for academic and professional writing. The key to effective usage lies in providing clear context to avoid ambiguity. Therefore, according to Ludwig, it's a valuable phrase for technical description.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

outer zone

Replaces "region" with "zone", emphasizing a specific area.

exterior area

Substitutes "external" with "exterior" and "region" with "area", providing a slightly different wording.

outer sector

Uses "sector" instead of "region", implying a more defined and segmented area.

peripheral zone

Replaces "external" with "peripheral", suggesting a location at the edge or boundary.

outside area

A simpler and more direct alternative using common vocabulary.

surface area

Focuses specifically on the area located on the surface.

bounding area

Specifies an area that defines the limits or boundaries.

adjacent area

Indicates an area that is near or next to something else.

surrounding area

Highlights the area that encircles or is around something.

environmental zone

Focuses on the ecological or environmental aspect of the area.

FAQs

How can I use "external region" in a sentence?

You can use "external region" to refer to an area outside a defined boundary. For example: "The study focused on the effects of pollution in the "external region" of the city."

What are some alternatives to "external region"?

Alternatives include "outer zone", "exterior area", or "peripheral zone" depending on the context.

Is it correct to use "outer region" instead of "external region"?

Yes, "outer region" is often interchangeable with "external region", but "external region" might be preferred in more formal or technical contexts.

What is the difference between "external region" and "internal region"?

"External region" refers to the area outside a defined boundary, while "internal region" refers to the area within that boundary.