Meanings
nounbrain day (plural brain days)
plural brain days
- informalA day dedicated to research, study or intellectual pursuits.
Cite this entry
APA
brain day. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/brain%20day
MLA
“brain day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/brain%20day. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “brain day,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/brain%20day.
Source: brain day on Wiktionary, CC BY-SA 4.0.