lisp definition by Webster's New World
- to substitute the sounds (t̸h) and (t̸h) for the sounds of s and z, as in pronouncing sing as though it were thing
- to speak imperfectly or like a child
Origin: Middle English lyspen, earlier wlispen ; from Old English -wlyspian ; from wlisp, wlips, a lisping, akin to German lispeln, Middle Low German wlispen, wilspen, of echoic origin, originally
- the act or speech defect of lisping
- the sound of lisping
Origin: lis(t) p(rocessing)
lisp definition by American Heritage Dictionary
- A speech defect or mannerism characterized by mispronunciation of the sounds (s) and (z) as (th) and (th).
- A sound of or like a lisp: “The carpenter['s] . . . plane whistles its wild ascending lisp” (Walt Whitman).
- To speak with a lisp.
- To speak imperfectly, as a child does.
Origin: From Middle English lispen, to lisp, from Old English -wlyspian (in āwlyspian, to lisp), from wlisp, lisping.
- lispˈer noun
Origin: lis(t) p(rocessing).
lisp - Computer Definition
(1) (Locator/Identifier Separation Protocol) A proposal from Cisco for reducing the size of the constantly expanding routing tables in the Internet. Working in conjunction with the border gateway protocol (BGP), LISP-identified packets enter the core routers with the destination service provider's IP address, not that of the end user. The provider's edge routers remove the LISP data and deliver the packets to the end users.
(2) (LISt Processing) A high-level programming language used for developing AI applications. Developed in 1960 by John McCarthy, its syntax and structure is very different from traditional programming languages. For example, there is no syntactic difference between data and instructions. LISP is available in both interpreter and compiler versions and can be modified and expanded by the programmer. Many varieties have been developed, including versions that perform calculations efficiently. The following Common LISP example converts Fahrenheit to Celsius: (defun convert () (format t "Enter Fahrenheit ") (let ((fahr (read))) (format t "Celsius is <126>D" (truncate (*(-fahr 32) (/ 5 9))))))
lisp - Medical Definition