from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A military officer acting as secretary and confidential assistant to a superior officer of general or flag rank.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A military officer who serves as an adjutant to a higher ranking officer, prince or other high political dignitary.
from The Century Dictionary and Cyclopedia
- n. Milit., a confidential officer whose duty it is to receive and communicate the orders of a general officer, act as his secretary upon occasion, and the like. Sometimes written aid-de-camp.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an officer who acts as military assistant to a more senior officer
French : aide, assistant + de, of + camp, camp.(American Heritage® Dictionary of the English Language, Fourth Edition)
Borrowing from French, from aide 'aide' + de 'of' camp '(military) camp' (Wiktionary)