(1) See
exponent.
(2) (
Electronic) "E" with or without the hyphen (e or e-) is used as a word prefix in order to connote the electronic or Internet version of a physical object or activity. For example, mail becomes email or e-mail; a book becomes an ebook or e-book, etc.
(3) A set of object-oriented extensions for Java and Common Lisp introduced in 1997 by Electric Communities. Inspired by the Joule and Original-E languages, E was designed to create secure distributed computing applications. Messages are sent to remote objects in "vats," which processes the messages in the order they are received.