Meaning

2 senses
  1. (not comparable)Between departments; to do with the connection of departments.

    I sent the memo to the accounting department via interdepartmental mail.

    between or among departments

  2. (not comparable)Involving multiple departments; multidepartmental.

    The memo discussed a new interdepartmental project that would require resources from nearly every group.

Origin

From inter- + department + -al.

From inter- + department + -al.

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interdepartmental — meaning, examples, forms, synonyms | Krumeto