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
mm diameter that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mm diameter that" is not correct in written English as it is incomplete and lacks context.
It could be used in a technical or scientific context where measurements are being discussed, but it needs to be part of a complete sentence. Example: "The pipe has a diameter of 50 mm that allows for optimal flow."
⚠ May contain grammatical issues
Science
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
15 human-written examples
Particularly, application of KLD-2R in rats to the site of a drill-hole (0.8 mm diameter) that was created in the femur metaphysis displayed significantly higher bone regeneration compared to that of KLD.
Science
The indentation system is based on a light transmissible cylindrical glass indentor of 0.17 mm thickness and 1.64 mm diameter that is aligned along the focal axis of the microscope and allows for real time observation of live cells in their native environment.
Intrabronchial valves are umbrella-shaped devices (5 7 mm diameter) that limit airflow to distal lung and can be placed using bronchoscopic guidance [55].
Science
The load was applied to the cementation opposite surface, by cylindrical rod (2 mm diameter) that was attached to universal testing machine (EMIC DL 1000, São José dos Pinhais, Brazil).
Science
Visual targets during training consisted of black circles of two sizes a standard (5 mm diameter) and a large diameter target (LDT; 8 mm diameter)—that appeared within one of the four placeholders locations.
Science
A cranial window was made with a circular cover slip (4 mm diameter) that was gently placed over the craniotomy.
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
Ultrasound, CT and MRI documented the presence of an oval formation, with cystic charateristics 144x68 mm in diameter that extends caudally to about 10 mm in the context of the peritoneum in close proximity with the front lower edge of the small wing of the liver and the gastric body.
Science
The ESR probe is based on a dielectric ring resonator of 7 mm inner diameter that can accommodate cubic samples of 5 mm length needed for neutron experiments.
Group B patients were treated with a synthetic ligament (LARS LAC®, Arc sur Tille, France) 20 mm in diameter that was fixed to the clavicle with titanium screws 4.7 5.7 mm in diameter and 15 mm in length.
The spherical bomb is equipped with 4 quartz windows (200 mm optical diameter) that allow the use of a Particle Image Velocimetry diagnostic in order to characterize the turbulence level inside the bomb.
Based on a postulate that the microstructure of a scaffold can influence that of the resulting tissue and hence its mechanical behavior, we fabricated a small-diameter tubular scaffold (∼3 mm inner diameter) that has a microstructure similar to the arterial media using a scaffold membrane approach.
Expert writing Tips
Best practice
Always follow "mm diameter" with a prepositional phrase, such as "mm in diameter", or integrate it into a complete sentence for clarity. For example: 'The tube has a diameter of 5 mm' is much better than '5 mm diameter'.
Common error
Avoid using "mm diameter" as a standalone phrase without context. It's important to integrate it into a sentence or provide additional information for clarity. Don't write: "The hole, 2 mm diameter." Instead, write: "The hole is 2 mm in diameter."
Source & Trust
80%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase fragment "mm diameter that" functions as part of a descriptive measurement, typically found in technical or scientific contexts. It aims to specify the size of an object or feature, but it is usually part of a more extended description. Ludwig AI notes that this phrase is often grammatically incomplete.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "mm diameter that" is used to provide precise dimensional information, primarily in scientific and technical contexts. However, it's grammatically incomplete and needs to be part of a larger, correct sentence structure such as "mm in diameter" or "diameter of mm". As Ludwig AI points out, using it as a standalone phrase without context leads to grammatical errors and unclear communication. Alternatives include integrating the measurement into a complete sentence for better clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
mm in diameter
Replaces "diameter that" with a more common prepositional phrase indicating measurement.
with a diameter of mm
Provides a complete sentence structure emphasizing the size specification.
diameter of mm
Offers a concise noun phrase indicating the dimension.
having a mm diameter
Uses a participial phrase to describe an object's size.
mm across
Specifies diameter using an alternative spatial term.
measuring mm in diameter
Emphasizes the act of measurement in specifying the size.
with mm diameter dimensions
Explicitly states that the given measurement is a diameter dimension.
a mm-diameter
Forms a compound adjective to describe something's size.
at mm diameter
Uses 'at' to specify the diameter as a parameter.
mm size diameter
Indicates the diameter as a size attribute with reordered terms.
FAQs
How should I correctly use "mm diameter that" in a sentence?
While "mm diameter that" is not grammatically correct, you can use phrases like "mm in diameter" or "diameter of mm" to describe dimensions. For example: "The wire is 2 "mm in diameter"."
What are some alternatives to "mm diameter that"?
Instead of "mm diameter that", use more complete phrases such as "with a diameter of mm", "having a mm diameter", or "measuring mm in diameter" for better clarity and grammatical correctness.
Is "mm diameter that" grammatically correct?
No, "mm diameter that" is not grammatically correct on its own. It needs to be part of a larger, complete sentence or phrase such as "a diameter of mm" or something ""mm in diameter"".
When is it appropriate to use measurement specifications like "mm diameter that"?
Measurement specifications are appropriate in technical writing, scientific reports, or engineering documents where precise dimensions are crucial. However, always ensure they are grammatically integrated into a complete sentence or phrase for maximum clarity.
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
80%
Authority and reliability
3.5/5
Expert rating
Real-world application tested