girder
Americannoun
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a large beam, as of steel, reinforced concrete, or timber, for supporting masonry, joists, purlins, etc.
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a principal beam of wood, steel, etc., supporting the ends of joists.
noun
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a large beam, esp one made of steel, used in the construction of bridges, buildings, etc
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botany the structure composed of tissue providing mechanical support for a stem or leaf
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of girder
Explanation
A girder is any of the many beams used in buildings and bridges that provide support and actually hold them up. If you've ever seen a building going up, you know the first thing they do is put up a steel or wood skeleton that will eventually take the weight of the roof, the siding, the floors, and all the rooms inside. That skeleton is made of girders. Bridges also are made with girders, but they usually remain visible long after the steel beams in buildings have been covered by glass, brick, and wood.
Vocabulary lists containing girder
100 SAT Words Beginning with "G"
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Bless Me, Ultima
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"The End and the Beginning," Vocabulary from the poem
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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.
See Examples For:
Scanning the rubble, Ali caught sight of a pink, soot-covered pair of girls’ tracksuit bottoms, hanging from a steel girder jutting out of the heap.
From BBC ● Dec. 6, 2024
Last week, the final girder was installed on the crossing, completing the foundation and marking a construction milestone.
From Los Angeles Times ● May 30, 2024
A construction crew was removing a clock base from a Pine Street sidewalk on April 25 when they broke through the tunnel ceiling at Westlake Station, damaging a concrete girder above the northbound tracks.
From Seattle Times ● May 7, 2023
They can also penetrate materials that x-rays cannot, enabling researchers to image the interiors of big objects such as a running engine or a steel girder.
From Science Magazine ● Nov. 2, 2021
One of the does had held back from the bilgewater, and the upstream girder under the bridge had caught her across the back.
From "Watership Down: A Novel" by Richard Adams
Starting in 2023, they tore out its center and moved steel girders until they resembled Swiss cheese.
From The Wall Street Journal ● Jan. 10, 2026
Masonry, metal girders and piles of sand are everywhere along the pavements.
From Barron's ● Nov. 24, 2025
The final box girders were swung into place at the end of 1963, covered in the Union Flag and Lion Rampant to mark the occasion.
From BBC ● Sep. 3, 2024
Crews will install girders over the freeway to support the crossing, a vegetated bridge that will reconnect wildlife habitat, officials said.
From Los Angeles Times ● Mar. 23, 2024
Tobias slides along one of the girders and puts his leg under me.
From "Insurgent" by Veronica Roth
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.
