WordReference Random House Learner's Dictionary of American English © 2025
in•ter•de•part•men•tal /ˌɪntɚˌdipɑrtˈmɛntəl, -dɪpɑrt-/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2025- involving two or more departments:interdepartmental rivalry.
in•ter•de•part•men•tal
(in′tər dē′pärt men′tl, -di pärt-),USA pronunciation adj.
in′ter•de′part•men′tal•ly, adv.
- involving or existing between two or more departments:interdepartmental rivalry.
- inter- + departmental 1890–95
'interdepartmental' also found in these entries (note: many are not synonyms or translations):