A speech disorder wherein certain sounds, syllables, or words are habitually prolonged or repeated, disrupting the normal flow of speech.

Example: “p-p-Peter p-p-Piper p-p-picked a p-p-peck of p-p-pickled p-p-peppers (phew!)”

    Last reviewed: By John M. Grohol, Psy.D. on 3 Nov 2008