Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
regionally restricted
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "regionally restricted" is correct and usable in written English.
It can be used to describe something that is limited or confined to a specific geographic area or region. Example: "The product is regionally restricted, meaning it can only be sold in certain countries."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
46 human-written examples
For MBNL1, it exhibited a regionally restricted pattern of expression in canal region endocardium and ventricular myocardium during endocardial cushion development in chicken (Vajda et al., 2009).
Science
Nevertheless, we observed that a subset of behaviors were altered in these two regionally restricted RIM1 conditional deletion lines, thereby narrowing the brain regions involved in some behaviors.
Science
In addition, while a number of haplotypes are regionally restricted, Florida's A. cervicornis population contains haplotypes found in all other regions.
Science
These realms eventually became endemic (regionally restricted) biological provinces.
Encyclopedias
Since many of these nurseries offer mail-order service, the value of this book isnt regionally restricted.
News & Media
Given that urban areas are situated in productive habitats with inherently high species richness, it is important that local land-use plans incorporate the conservation of habitat fragments from the onset and place particular emphasis on the regionally restricted forest-dependent species.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
14 human-written examples
In salivary gland, Scr regionally restricts cellular signaling by activated dpp.
Many of the disease phenotypes studied are either more frequent (such as G6PD deficiency) or are regionally endemic, restricted to certain tribal communities or even unique to consanguine families.
Science
Many of these root beers are available only locally or regionally, and we restricted our selections to what we could buy in New York City stores or order online.
News & Media
The use of the application is often restricted regionally; the JPMorgan and Merrill apps are available only to clients based in the United States, and UBS's is available only to Swiss clients.
News & Media
When acidification is restricted regionally, the global increase in CaT amplitude may arise from a rapid re-distribution of the SR Ca2+ load from acidic to non-acidic regions, via lumenal Ca2+ diffusion.
Science
Expert writing Tips
Best practice
In business or marketing contexts, use "regionally restricted" to clearly communicate the limited availability or applicability of a product, service, or promotion. Be explicit about which regions are included or excluded to avoid ambiguity.
Common error
Avoid using "regionally restricted" interchangeably with terms like "locally sourced" or "regionally influenced". "Regionally restricted" implies a limitation or confinement, whereas the other terms suggest origin or influence from a region without necessarily implying restriction. Using the wrong term can mislead your audience about the scope or origin of what you're describing.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "regionally restricted" primarily functions as an adjective phrase modifying a noun. It describes something that is limited or confined to a specific geographic area. As Ludwig AI confirms, the phrase is grammatically sound and widely used.
Frequent in
Science
75%
News & Media
15%
Encyclopedias
5%
Less common in
Formal & Business
2%
Wiki
2%
Reference
1%
Ludwig's WRAP-UP
In summary, the phrase "regionally restricted" is a grammatically correct and commonly used adjective phrase that signifies something is limited to a specific geographic area. Ludwig AI confirms its validity, and its prevalence in scientific literature underscores its suitability for formal contexts. While alternatives such as "geographically limited" or "locally confined" exist, "regionally restricted" offers a specific nuance indicating confinement rather than mere origin. When using this phrase, ensure clarity in specifying the relevant region and avoid confusing it with terms that imply influence rather than restriction. The phrase is very common in science, but also appears in news, encyclopedias and other source types.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
geographically limited
Focuses on the geographic aspect of the restriction.
locally confined
Emphasizes the local nature of the restriction.
area-specific
Highlights that something is specific to a particular area.
territorially bounded
Uses more formal language to denote the limitation within a territory.
provincially delimited
Indicates a restriction within a province or similar administrative region.
endemic to a region
Describes something that is naturally found or restricted to a certain region.
confined to a locale
Highlights the restriction to a specific place.
sectionally limited
Indicates a limitation to a specific section or part of a larger area.
parochially restricted
Suggests a very narrow or local restriction.
demarcated geographically
Emphasizes that the restriction is defined by geographic boundaries.
FAQs
How can I use "regionally restricted" in a sentence?
You can use "regionally restricted" to indicate that something is limited or confined to a specific geographic area. For example, "The study found a "regionally restricted" gene flow among coral populations in the Caribbean".
What are some alternatives to saying "regionally restricted"?
Depending on the context, you could use alternatives like "geographically limited", "locally confined", or "area-specific".
Is it correct to say "locally restricted" instead of "regionally restricted"?
While "locally restricted" can be used, it suggests a smaller, more immediate area than "regionally restricted". The best choice depends on the specific geographic scope you want to convey. Consider if "locally confined" fits better.
What does "regionally restricted gene flow" mean?
"Regionally restricted gene flow" indicates that the exchange of genetic material between populations is limited to specific geographic areas, suggesting that populations in different regions are becoming genetically distinct.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested