| interdepartmental | |
| interdepartmentally |
| interdepartmental | (adj) between or among departments, Ant. intradepartmental, Example: interdepartmental competition |
| interdepartmental | (adv) between departments, Example: this memo was circulated interdepartmentally |
| interdepartmental support | (n) provision of logistic (or administrative) support by one or more of the military services to one or more departments or agencies of the United States government, Syn. interagency support |