We found 35 dictionaries that define the word girder:

General (27 matching dictionaries)

1. girder: Merriam-Webster
2. girder: Oxford Learner's Dictionaries
3. girder: American Heritage Dictionary of the English Language
4. girder: Collins English Dictionary
5. girder: Vocabulary.com
6. Girder, girder: Wordnik
7. girder: Cambridge Advanced Learner's Dictionary
8. girder: Wiktionary
9. girder: Webster's New World College Dictionary, 4th Ed.
10. girder: The Wordsmyth English Dictionary-Thesaurus
11. girder: Infoplease Dictionary
12. Girder, girder: Dictionary.com
13. girder: Cambridge Essential American English Dictionary
14. Girder (comics), Girder: Wikipedia, the Free Encyclopedia
15. Girder: Online Plain Text English Dictionary
16. girder: Webster's Revised Unabridged, 1913 Edition
17. girder: Rhymezone
18. girder: AllWords.com Multi-Lingual Dictionary
19. girder: Webster's 1828 Dictionary
20. Girder: E Cobham Brewer, The Reader's Handbook
21. Girder: Dictionary of Phrase and Fable (1898)
22. girder: FreeDictionary.org
23. girder: Mnemonic Dictionary
24. girder: TheFreeDictionary.com
25. girder: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

26. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

27. girder: Encyclopedia

Medicine (1 matching dictionary)

28. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

29. GIRDER: Acronym Finder

Slang (1 matching dictionary)

30. Girder: Urban Dictionary

Tech (3 matching dictionaries)

31. AUTOMOTIVE TERMS (No longer online)
32. Girder: Construction Glossary
33. Bridge Dictionary (No longer online)

(Note: See girders as well.)

Definitions from Wiktionary ( ) ▸ noun:  A beam of steel, wood, or reinforced concrete, used as a main horizontal support in a building or structure. ▸ noun:  One who girds; a satirist. Similar: crossbeam, girderage, box girder, sandwich girder, plate girder, girth, girt, gauntree, gauntry, gantry scaffold, more... Opposite: beam, joist, rafter, truss Types: steel, concrete, wood, aluminum, glass, rubber, more... Phrases: box girder, plate girder, Girder bridge, lattice girder, hull girder, more... Adjectives: continuous, main, concrete, plate, horizontal, longitudinal, welded, iron, and, single, riveted Colors:     gray,     steel blue,     charcoal,     slate gray,     gunmetal, more... ▸ Words similar to girder ▸ Usage examples for girder ▸ Idioms related to girder ▸ Wikipedia articles (New!) ▸ Popular adjectives describing girder ▸ Words that often appear near girder ▸ Rhymes of girder ▸ Invented words related to girder