conj.
Used to indicate that either or both of the items connected by it are involved.
USAGE NOTE And/or is widely used in legal and business writing. Its use in general writing to mean "one or the other or both" is acceptable but can appear stilted. See Usage Notes at or1.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
