Definition of "e-book" []

• A small, portable device onto which the contents of a book in electronic format can be downloaded and read. (noun)
• A book whose contents are in an electronic format. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Despite the existing technology, though, the phrase "e-book signing" hasn't hit the mainstream."
• "- Internet billionaire and Dallas Mavericks owner Mark Cuban will publish a 30,000-word "e-book" focused on business and success, according to The Wall Street Journal."
• "The frightening specter of the dawn of some kind of Terminator Age is conjured up in the title an e-book by Erik Brynjolfsson and Andrew McAfee, both professors at MIT, Race Against The Machine: How the Digital Revolution is Accelerating Innovation, Driving Productivity, and Irreversibly Transforming Employment and the Economy."