[dis-floo-uh
n-see] 
| 1. | Pathology. impairment of the ability to produce smooth, fluent speech. |
| 2. | an interruption in the smooth flow of speech, as by a pause or the repetition of a word or syllable. |
| disfluency | |
noun | |
| lack of skillfulness in speaking or writing [ant: fluency] |