Meanings
nounJefferson disk (plural Jefferson disks)
plural Jefferson disks
- historicalcomputingAny of a set of stackable disks, each having the letters of the alphabet arranged in some sequence around its edge, used in a cipher system.
Origin
Commonly attributed to Thomas Jefferson.
Full word history & related roots →Cite this entry
APA
Jefferson disk. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Jefferson%20disk
MLA
“Jefferson disk.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Jefferson%20disk. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Jefferson disk,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Jefferson%20disk.
Source: Jefferson disk on Wiktionary, CC BY-SA 4.0.