noun
division (of a company); operations department
Refers to a business unit or department within a company, often responsible for a specific product line or market segment.
彼は新しい事業部の責任者に任命された。
He was appointed head of the new division.
当社の海外事業部はアジア市場を担当しています。
Our company's overseas operations department is in charge of the Asian market.
部門 is a broader term for a division, category, or field, not limited to corporate structures. 事業部 is more specific to a company's operational unit.
Compound of 事業 (business, enterprise) and 部 (division, department).