Meanings
nounradius arm (plural radius arms)
plural radius arms
- engineeringA radius rod.
The axles are guided within the bogie frames by radius arms and are fitted with disc brakes; magnetic rail brakes are also provided.
1963 May, “Europe's latest high-power locomotives”, in Modern Railways, page 298
Synonyms & antonyms
Also see
Cite this entry
APA
radius arm. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/radius%20arm
MLA
“radius arm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/radius%20arm. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “radius arm,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/radius%20arm.
Source: radius arm on Wiktionary, CC BY-SA 4.0.