Meanings
nounleft brain (plural left brains)
plural left brains
- The left cerebral hemisphere; the part of the brain popularly associated with analysis and computation.
Synonyms & antonyms
nounthe cerebral hemisphere to the left of the corpus callosum that controls the right half of the body
Similar
left hemisphere
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
left brain. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/left%20brain
MLA
“left brain.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/left%20brain. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “left brain,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/left%20brain.
Source: left brain on Wiktionary, CC BY-SA 4.0.