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
which is characterized by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which is characterized by" is correct and usable in written English.
It can be used to describe the defining features or qualities of a subject or concept. Example: "The new software update, which is characterized by enhanced security features, will be available next week."
✓ Grammatically correct
Science
News & Media
Academia
Encyclopedias
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
60 human-written examples
The most common is Alzheimer's, which is characterized by neurofibrillary tangles — misshaped proteins — and plaques.
News & Media
"Unfortunately, the disease of alcoholism, which is characterized by denial, prevented this from occurring.
News & Media
(Policy debate, which is characterized by almost incomprehensibly rapid talking, has long been a male preserve).
News & Media
"Slow" pain, which is characterized by dull, aching pain, and results in no withdrawal reflex.
My work concerns comparative cognitive neuroscience, which is characterized by two related approaches.
Academia
The Triads is a secret Chinese underground organization, which is characterized by criminal activities for profit.
Academia
"Fast" pain, which is characterized by sharp, piercing pain, and results in a quick withdrawal reflex.
Kamsky played the London System, which is characterized by White's early development of his bishop to f4.
News & Media
This condition has two forms: Hashimoto thyroiditis (Hashimoto disease), which is characterized by goitre (enlargement of the thyroid), and atrophic thyroiditis, which is characterized by shrinkage of the thyroid gland.
Encyclopedias
The Stellenbosch was followed by the Fauresmith, which is characterized by evolved hand axes and Levallois-type flakes.
Encyclopedias
Mr. Seidemann suggested that Mr. Hernandez might instead have intermittent explosive disorder, which is characterized by angry and violent outbursts.
News & Media
Expert writing Tips
Best practice
When using "which is characterized by", ensure the phrase clearly and concisely identifies the defining features of the subject. Avoid redundancy by not stating the obvious.
Common error
Avoid excessive passive voice when using "which is characterized by". While grammatically correct, too much passivity can make your writing sound weak. Opt for active constructions when possible to create a more engaging and direct style.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which is characterized by" functions as a relative clause, providing additional information about a noun. It introduces a defining feature or attribute, elaborating on the subject being discussed. Ludwig examples illustrate how it's used across diverse contexts to specify key characteristics.
Frequent in
Science
31%
News & Media
30%
Academia
15%
Less common in
Encyclopedias
5%
Wiki
1%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "which is characterized by" is a grammatically sound and frequently used relative clause, as confirmed by Ludwig. It functions to introduce defining features or attributes of a subject, providing clarity and detail. It is particularly common in scientific, academic, and news-related content, making it suitable for formal and neutral contexts. While alternatives exist, such as "that is distinguished by" or ""which features"", the choice depends on the desired nuance and formality level. Remember to use it to concisely define key aspects, avoid overuse of passive voice, and ensure clarity in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that is defined by
Replaces 'characterized' with 'defined,' indicating a more formal or strict definition.
that is marked by
Employs 'marked' to highlight prominent or noticeable attributes.
that is distinguished by
Changes the verb to 'distinguished,' emphasizing the uniqueness of the characteristic.
that is exemplified by
Replaces 'characterized' with 'exemplified,' meaning the attribute serves as an example.
that is typified by
Uses 'typified' to indicate a representative or quintessential feature.
that features
Uses a simpler verb 'features' for a less formal tone.
that is known for
Replaces 'characterized' with 'known,' emphasizing recognition of the characteristic.
that is highlighted by
Changes to 'highlighted,' suggesting the feature is prominent and emphasized.
that is notable for
Substitutes 'characterized' with 'notable,' focusing on what makes something remarkable.
that boasts
Uses 'boasts' to convey a sense of pride or advantage in possessing the attribute.
FAQs
How can I use "which is characterized by" in a sentence?
Use "which is characterized by" to introduce defining features or qualities of a noun. For example: "Alzheimer's, "which is characterized by" neurofibrillary tangles and plaques, is a common type of dementia."
What are some alternatives to "which is characterized by"?
Alternatives include "which is defined by", "which features", or "which is marked by". The best choice depends on the specific nuance you want to convey.
Is it correct to use "that is characterized by" instead of "which is characterized by"?
While both are grammatically correct, "which" is generally preferred in nonrestrictive clauses (providing extra information), while "that" is used in restrictive clauses (essential to the sentence's meaning). However, in this specific case, "which" is far more common.
What's the difference between "which is characterized by" and "which is known for"?
"Which is characterized by" refers to the defining attributes of something, while "which is known for" refers to qualities that are widely recognized or famous. The former is more about essential features, the latter about reputation or common perception.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested