noun
supplementary motor area; SMA
Anatomical term for a region of the cerebral cortex involved in motor planning.
補足運動野は運動の計画や開始に関与している。
The supplementary motor area is involved in planning and initiating movements.
Compound of 補足 (supplementary) + 運動 (motor) + 野 (area), a direct translation of the English anatomical term.