from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Computer Science An operating system that resides on a disk.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • Disk Operating System
  • Date(s) of service
  • Date of separation
  • Department of State
  • Density of states

from The Century Dictionary and Cyclopedia

  • n. In civil law: Property brought to a husband by his wife, upon marriage. See dotal *property.
  • n. A common-law dower. See dower, 2.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an operating system that is on a disk
  • n. the federal department in the United States that sets and maintains foreign policies


d(isk) o(perating) s(ystem).
(American Heritage® Dictionary of the English Language, Fourth Edition)



Log in or sign up to get involved in the conversation. It's quick and easy.