Department of the Interior

noun
  1. the department of the U.S. federal government charged with the conservation and development of the natural resources of the U.S. and its possessions. Abbreviation: DOI
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

department of the interior in Culture

Department of the Interior

A department of the federal executive branch responsible for the National Park Service, the Bureau of Indian Affairs, and a variety of programs designed to preserve natural resources in the United States and its territories and possessions in the Pacific Ocean.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.