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lateral lisp

noun Phonetics.
  1. See under lisp(def 2).
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lisp

[lisp]
noun
  1. a speech defect consisting in pronouncing s and z like or nearly like the th-sounds of thin and this, respectively.
  2. Phonetics. any unconventional articulation of the sibilants, as the pronunciation of s and z with the tongue between the teeth (lingual protrusion lisp), close to or touching the upper front teeth (dental lisp), or raised so that the breath is emitted laterally (lateral lisp).
  3. the act, habit, or sound of lisping.
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verb (used with or without object)
  1. to pronounce or speak with a lisp.
  2. to speak imperfectly, especially in a childish manner.
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Origin of lisp

before 1100; Middle English wlispen, lipsen, Old English āwlyspian; akin to Dutch lisp(el)en, German lispeln, Norwegian leipsa
Related formslisp·er, nounlisp·ing·ly, adverbun·lisp·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for lateral lisp

lisp

noun
  1. the articulation of s and z like or nearly like the th sounds in English thin and then respectively
  2. the habit or speech defect of pronouncing s and z in this manner
  3. the sound of a lisp in pronunciation
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verb
  1. to use a lisp in the pronunciation of (speech)
  2. to speak or pronounce imperfectly or haltingly
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Derived Formslisper, nounlisping, adjective, nounlispingly, adverb

Word Origin

Old English āwlispian, from wlisp lisping (adj), of imitative origin; related to Old High German lispen

LISP

noun
  1. a high-level computer-programming language suitable for work in artificial intelligence
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Word Origin

C20: from lis (t) p (rocessing)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lateral lisp

lisp

v.

late Old English awlyspian "to lisp," from wlisp (adj.) "lisping," probably of imitative origin (cf. Middle Dutch, Old High German lispen, Danish læspe, Swedish läspa). Related: Lisped; lisping.

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lisp

n.

1620s, from lisp (v.).

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Online Etymology Dictionary, © 2010 Douglas Harper
lateral lisp in Medicine

lisp

(lĭsp)
n.
  1. A speech defect or mannerism characterized by mispronunciation of the sounds (s) and (z) as (th) and (th).
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v.
  1. To speak with a lisp.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.