1. One of the parts or spaces into which an area is subdivided.
2. A separate room, section, or chamber: a storage compartment.
tr.v. com·part·ment·ed, com·part·ment·ing, com·part·ments
To compartmentalize: "The information has not been compartmented" (John H. Cushman, Jr.)
com′part·mental (kŏm′pärt-mĕntl) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.