interdepartmental.
Between departments; to do with the connection of departments.
Meaning & usage
Between departments; to do with the connection of departments.
I sent the memo to the accounting department via interdepartmental mail.
Involving multiple departments; multidepartmental.
The memo discussed a new interdepartmental project that would require resources from nearly every group.
Where this word comes from
From inter- + department + -al.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.