Meanings
nounAlderson disk (plural Alderson disks)
plural Alderson disks · alternative Alderson disc
- A hypothetical megastructure in the form of a disk with a star located in a hole running through its axis, and massive enough to have its own atmosphere
Origin
Named after American programmer Dan Alderson, who invented the concept.
Full word history & related roots →Cite this entry
APA
Alderson disk. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Alderson%20disk
MLA
“Alderson disk.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Alderson%20disk. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “Alderson disk,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Alderson%20disk.
Source: Alderson disk on Wiktionary, CC BY-SA 4.0.