Meanings
nounRiley-Day syndrome (uncountable)
- uncountableA rare genetic disorder of the autonomic nervous system.
Origin
Originally reported by Drs. Conrad Milton Riley and Richard Lawrence Day in 1949.
Full word history & related roots →Cite this entry
APA
Riley-Day syndrome. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Riley-Day%20syndrome
MLA
“Riley-Day syndrome.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Riley-Day%20syndrome. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “Riley-Day syndrome,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Riley-Day%20syndrome.
Source: Riley-Day syndrome on Wiktionary, CC BY-SA 4.0.