vertical line
Americannoun
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vertical lines
plural
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a line that is perpendicular to the base of a surface or plane. Compare horizontal line.
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Mathematics. a line whose points all have the same horizontal coordinate.
Other Word Forms
Noun Inflected Forms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For decades, mathematicians have tried to prove the Riemann hypothesis, which says that 100% of the nontrivial zeros of the Riemann zeta function fall on a single vertical line.
From The Wall Street Journal ● Aug. 15, 2026
At one point, he seems to become a marionette: the vertical line of the microphone stand dividing him in two, with gyrating arms and legs seemingly independent of each other.
From Seattle Times ● Sep. 19, 2023
Michael Moore, a researcher at the Wood Hole Oceanographic Institution in Massachusetts, said the whales’ unexpected arrival in the Gulf of St. Lawrence showed how vertical line fishing everywhere might eventually have to adjust.
From Reuters ● Jun. 7, 2023
The left hip arcs grandly, while the right one nearly disappears into a vertical line.
From New York Times ● Apr. 20, 2023
A vertical line went under the horizontal line on the right side of the board.
From "P.S. Be Eleven" by Rita Williams-Garcia
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
