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
vary in diameter
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "vary in diameter" is correct and usable in written English.
It can be used when describing objects or phenomena that have different sizes or widths, particularly in scientific or technical contexts. Example: "The pipes in the plumbing system vary in diameter to accommodate different flow rates."
✓ Grammatically correct
Science
Encyclopedias
News & Media
Alternative expressions(2)
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
18 human-written examples
Nanotubes vary in diameter and in how they are rolled up.
News & Media
Round-knife machines vary in diameter and rotary speed of the blade.
Encyclopedias
Usually constructed of quarter-inch steel plate, buoys vary in diameter from three to six feet and can weigh as much as eight tons.
Encyclopedias
The lathe carries a point or small disk of soft iron, which can vary in diameter from that of a pinhead to a quarter of an inch.
Encyclopedias
They also have muscles that move the eyes and pupils that can vary in diameter, from 0.4 2.8 mm (0.02 0.11 inch), with light intensity.
Encyclopedias
Most viruses vary in diameter from 20 nanometres (nm; 0.0000008 inch) to 250 400 nm; the largest, however, measure about 500 nm in diameter and are about 700 1,000 nm in length.
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
42 human-written examples
Due to the fact that finger veins vary in diameters naturally, an effective curve length field (CLF) estimation method is proposed to make weighted SCFs adaptive to vein-width variations.
Science
From the histograms, it can be seen that the cavities vary in diameters while their circularities range mainly from 0.15 to 0.2 and most of them have intermediate thickness.
The artery varies in diameter, so surgeons can stretch different sections depending on the diameter they are looking for.
News & Media
The valve cusps are thickened, and the size of the orifice varies in diameter from 1 mm to about two-thirds of the circumference of the pulmonary artery.
Encyclopedias
Still played in modern France and Belgium by huntsmen, brass bands, and horn-playing clubs, it varies in diameter and number of coils but is often about 15 inches (38 centimetres) across, coiled three times, with 15 feet (4 1/2 metres) of tubing.
Encyclopedias
Expert writing Tips
Best practice
To add specificity to descriptions, follow "vary in diameter" with a measurable range or a specific comparison of sizes.
Common error
Avoid using "vary in diameter" without providing a clear reference point or range. Without context, the phrase is vague and lacks informative detail.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "vary in diameter" functions as a descriptive term, typically used to specify that the width or diameter of a set of objects or structures is not uniform. It indicates a range or diversity in size. Ludwig AI confirms its usability in English.
Frequent in
Science
65%
Encyclopedias
25%
News & Media
10%
Less common in
Wiki
0%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "vary in diameter" is a grammatically sound and frequently employed expression, predominantly found in scientific and technical contexts. As Ludwig AI confirms, it effectively describes the non-uniformity of width or diameter among a group of objects or structures. Its purpose is primarily descriptive, providing specific information about size diversity. While generally formal, its clarity and precision make it suitable for various applications where accurate size specification is essential. When using this phrase, providing a range or specific context enhances its informative value. The most frequent usage appears in science and encyclopedias.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Differ in diameter
Replaces "vary" with "differ", emphasizing the difference in diameter.
Range in diameter
Focuses on the range or spectrum of diameters present.
Show diameter variations
Highlights the existence of variations in diameter.
Exhibit diameter differences
Uses "exhibit" to showcase differences in diameter.
Display a range of diameters
More descriptive, indicating a variety of diameters are on display.
Have differing diameters
Simple substitution using "have differing" instead of "vary in".
Possess variable diameters
Formal alternative using "possess variable" to denote differences.
Demonstrate variations in diameter
Similar to exhibiting, but emphasizes the demonstration of variation.
Are not uniform in diameter
Highlights the lack of uniformity in diameter.
Change in diameter
Focuses on the action of diameter alteration
FAQs
How do I use "vary in diameter" in a sentence?
Use "vary in diameter" to describe objects or structures that have different widths. For instance, "The pipes in the plumbing system "vary in diameter" to accommodate different flow rates".
What can I say instead of "vary in diameter"?
You can use alternatives like "differ in diameter", "range in diameter", or "exhibit diameter differences" depending on the context.
Is it correct to say "diameters vary"?
Yes, "diameters vary" is grammatically correct and conveys a similar meaning to ""vary in diameter"". The choice depends on the desired emphasis and sentence structure.
What's the difference between "vary in diameter" and "vary in size"?
"Vary in diameter" specifically refers to differences in width or diameter, while "vary in size" is a broader term that encompasses differences in overall dimensions, including length, width, and height.
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
4.5/5
Expert rating
Real-world application tested