1. in a manner relating to or organized by departments; with respect to departments
Usage: formal; commonly used in organizational and administrative contexts

Examples

• The company is organized departmentally, with separate teams for marketing, sales, and operations.
• Decisions are made departmentally rather than at the corporate level.
• The budget was allocated departmentally based on each division's needs.
• Staff meetings are held departmentally once a month.
• The university structures its courses departmentally by subject area.