pars triangularis; triangular part of inferior frontal gyrus
Neuroanatomical term referring to a specific region of the frontal lobe. Used in medical and scientific contexts.
See also: 下前頭回
The pars triangularis is part of Broca's area.
Compound of 三角 (さんかく, 'triangle') and 部 (ぶ, 'part, section'), directly translating the anatomical concept of a triangular region.