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Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
disfluencySpeech that exhibits deviations in continuity, fluidity, ease of rate and effort, with hesitations or repetition of sounds, words, or phrases; lack of skillfulness in speech. Disfluency is normal in pre-school language development. In later years, it can be due to congenital conditions such as Down’s syndrome, or acquired—either early, as in stuttering, or late, as may occur in Parkinson’s disease.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
dysfluencyNeurology A speech rhythm disorder–eg, stuttering, often characterized by the repetition of a sound, word, or phrase. See Speech disorder.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
dys·flu·en·cy, disfluency (dis-flū'ĕn-sē)
Speech interrupted in its forward flow by hesitations, repetitions, or prolongations of sounds; common manifestation of a stuttering disorder, which is also present in normal speech, particularly during speech development in young children.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012