1. emacs - Noun
2. Emacs - Proper noun
Emacs
(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.
English Wikipedia has an article on:emacsWikipedia
emacs (plural emacses or emacsen)
(computing) Any implementation or reimplementation of Emacs.
A buffer is a region of text loaded into Emacs' memory (possibly from a file) which can be saved into a text document. Source: Internet
Also, the lexical-let macro in the "cl" package does provide effective lexical scope to Emacs Lisp programmers, but while `cl' is widely used, lexical-let is rarely used. Source: Internet
A pictorial version of this puzzle is programmed into the emacs editor, accessed by typing M-x hanoi. Source: Internet
A prominent characteristic of Emacs Lisp is in its use of dynamic rather than lexical scope by default (see below). Source: Internet
For example, Flycheck is a modern on-the-fly syntax checking extension for GNU Emacs 24 with support for 39 languages. Source: Internet
Byte code "Byte-compilation" can make Emacs Lisp code faster. Source: Internet