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
vertical centerline
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "vertical centerline" is correct and usable in written English.
You can use it to describe the vertical line that is in the center of something, such as a painting, a book cover, or a logo. For example, "The painting had a bold vertical centerline that divided it in two."
✓ Grammatically correct
Science
Wiki
News & Media
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
7 human-written examples
The center of gravity of the foundation's total mass (block and mat) should be within 6 to 8 inches of the vertical centerline of the crankshaft.
For the purposes of this work, eccentricity (E) is defined as the distance between the shaft and the vertical centerline of the tank/tank radius.
Science
The velocity profile is nearly symmetric along the vertical centerline of the horizontal pipe, or tends to be slightly skewed toward the bottom region of the pipe.
Science
It is found that an overall better performance can be achieved by placing the supply grilles closer to the vertical centerline of the wall while the location of the exhaust grilles is somewhat insignificant.
Science
In cases with one burner or two burners with zero spacing, there is one single flame and the vertical centerline temperature distribution were divided into four zones including core zone, constant zone, intermittent flame zone and plume zone.
Science
In cases where the proposed horizontal treatment line does not capture the target nerves, as indicated by an insufficient reduction in superior knee pain, treatment should be extended medially past the medial edge of the patella, as the majority of femoral cutaneous nerve branches occur medial to the vertical centerline of the thigh.
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
Next an improved estimate of the center of the RPE is obtained by calculating the "shortest path" in the negated B-scan (i.e. the hyper-reflective areas become dark) in a narrow vertical region around the centerline.
This paper describes tests in a "virtual wind tunnel" over wide ranges of model span and vertical locations from the tunnel centerline to positions near the roof.
Processes controlling the distribution and natural attenuation (NA) of phenol, cresols and xylenols released from a former coal-tar distillation plant in a deep Triassic sandstone aquifer are evaluated from vertical profiles along the plume centerline at 130 and 350 m from the site.
In-plane time-averaged velocities (¯¯¯U,¯¯¯V) and time-averaged turbulent stresses (¯¯¯¯¯u'2, ¯¯¯¯¯v'2, and ¯¯¯¯¯¯¯u′v′) are given for a vertical plane passing through the burner centerline.
Science
Images were acquired at 0, 248 48, and 72 hours post scratch, at 100× magnification at each intersection of the scratch wound (vertical defect) and the marked horizontal centerline using a Dr-5 digital camera (Southern Microscope) mounted t22232o a Nikon Eclipse TS100 inverted microscope.
Science
Expert writing Tips
Best practice
When describing technical drawings or diagrams, clearly indicate if the "vertical centerline" represents an axis of symmetry or simply a reference line.
Common error
Avoid using "vertical centerline" when a general description of verticality is sufficient. The phrase implies a specific central axis, so ensure the context warrants this level of precision.
Source & Trust
74%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "vertical centerline" functions primarily as a noun phrase that serves as a descriptor, specifying a line's orientation (vertical) and its position (center). According to Ludwig, the phrase is grammatically correct and usable in written English, denoting a vertical line in the center of something.
Frequent in
Science
57%
News & Media
21%
Wiki
14%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "vertical centerline" is a grammatically sound noun phrase primarily used in technical and descriptive contexts to indicate a central vertical axis. Ludwig confirms its correctness and usability, highlighting examples across various scientific, technical, and design applications. While not as common as simpler descriptions, its precision makes it valuable when detailed specifications are necessary. When writing with "vertical centerline", prioritize clarity and ensure the level of detail aligns with your audience and purpose.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
central vertical axis
This option uses different wording to describe the same concept of a "vertical centerline".
centered vertical line
This alternative focuses on the line being centered and vertical.
vertical axis of symmetry
This alternative specifies the "vertical centerline" as an axis of symmetry, implying a balanced distribution around it.
vertical midline
This term focuses on the line being in the middle but is a more general anatomical or geometrical term.
mid-vertical line
This describes a line that is vertically in the middle but suggests less precision than the original phrase.
central perpendicular line
This alternative emphasizes the perpendicularity and centrality of the line, rather than only stating it is vertical.
principal vertical axis
This suggests that the axis is the main or most important vertical line.
plumb line at the center
This specifies that the line is perfectly vertical (plumb) and located at the center.
symmetry's vertical axis
This rephrases it to focus on its role regarding symmetry, not just as an axis.
central up-down line
This uses common language to describe a "vertical centerline" while being less formal.
FAQs
How is "vertical centerline" used in technical contexts?
In technical fields like engineering and design, "vertical centerline" typically refers to the central vertical axis of an object or space, used as a reference for measurements or symmetry. For example, "The crankshaft should align with the "vertical centerline" of the engine block."
What are some alternatives to "vertical centerline"?
Depending on the context, you can use alternatives like "central vertical axis", "mid-vertical line", or "vertical midline". The best choice depends on the specific nuance you want to convey.
Is it correct to use "vertical centerline" in non-technical writing?
While primarily used in technical contexts, "vertical centerline" can be used in descriptive writing to precisely indicate a central vertical line. However, ensure the level of precision is necessary for the audience and purpose.
What is the difference between "centerline" and "vertical centerline"?
"Centerline" can refer to a line in any orientation (horizontal, vertical, or diagonal) that marks the center of something. "Vertical centerline" specifically indicates that the line is oriented vertically.
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
74%
Authority and reliability
4.4/5
Expert rating
Real-world application tested