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1. A speech disorder characterized by hesitation and repetition of words, or by mispronunciation or transposition of certain consonants, especially l, r, and s.
2. Sounds other than speech that are similar to stammering.
Farlex Partner Medical Dictionary © Farlex 2012
psellism, psellismus (sel′ĭzm) (sĕ-liz′mŭs) [Gr. psellisma, stammer]
Defective pronunciation, stuttering, or stammering.
Jerking, hurried, unintelligible speech present as part of the tremor that accompanies mercury poisoning.
Medical Dictionary, © 2009 Farlex and Partners