Definition of "Emacs"

Emacs

/ˈiːmæks/

proper noun
1. (computing) A particular visual or WYSIWYG text editor (first written by Richard Stallman in 1975 but since reimplemented by others in several distinct versions), distinguished by its use of control characters as editing commands, by its lack of distinct "insert" and "edit" modes, and by its featurefulness and extensibility.
  Quotations
  "Emacs was initially a text editor," says Stallman, explaining the getup. "Eventually it became a way of life for many and a religion for some. We call this religion the Church of Emacs."
  2002, Sam Williams, quoting Richard Stallman, Free as in Freedom