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interdepartmental

American  
[in-ter-dee-pahrt-men-tl, -di-pahrt-] / ˌɪn tərˌdi pɑrtˈmɛn tl, -dɪ pɑrt- /

adjective

  1. involving or existing between two or more departments.

    interdepartmental rivalry.


interdepartmental British  
/ ˌɪntəˌdiːpɑːtˈmɛntəl /

adjective

  1. of, relating to, or conducted between two or more departments

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of interdepartmental

First recorded in 1890–95; inter- + departmental ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Authorities have set up an interdepartmental investigation task force to look into the cause of the blaze.

From Barron's Nov. 30, 2025

The ask, spelled out in an interdepartmental memo: something live from New York for a young audience.

From The Wall Street Journal Nov. 3, 2025

The report will form the basis of recommendations by an interdepartmental working group and a survivors' reference group to the first and deputy first ministers.

From BBC Feb. 12, 2025

Vice President Harris’ campaign has an interdepartmental team “to prepare for the potential effects of AI this election, including the threat of malicious deepfakes,” said spokeswoman Mia Ehrenberg in a statement.

From Los Angeles Times Aug. 21, 2024

I still think," said Cochrane, "that we could have done with a little interdepartmental cooperation.

From Operation: Outer Space by Murray Leinster

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