Meanings
nounbig iron (uncountable)
- uncountablea large pistol
- datedhumorousslanguncountablecomputingLarge, expensive, powerful computers such as mainframes.
Cite this entry
APA
big iron. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/big%20iron
MLA
“big iron.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/big%20iron. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “big iron,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/big%20iron.
Source: big iron on Wiktionary, CC BY-SA 4.0.