Common Lisp
Common Lisp, commonly abbreviated CL, is a dialect of the Lisp programming language, standardised by ANSI X3.226-1994. Developed to standardize the divergent variants of Lisp which predated it, it is not an implementation but a language specification. Several implementations of the Common Lisp standard are available, including commercial products and open source software.
Common Lisp is a general-purpose programming language, in contrast to Lisp variants such as Emacs Lisp and AutoLISP which are embedded extension languages in particular products. Unlike many earlier Lisps, Common Lisp (like Scheme) uses lexical variable scope.
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Programming Language
This is a programming language. It may be used to instruct computers to accomplish a variety of tasks which may or may not be domain-specific.