A speech disorder involving hesitations and involuntary repetitions of certain sounds WordNet 3.0 & Open English WordNet

Stuttering, also known as stammering, is a speech disorder in which the flow of speech is disrupted by involuntary repetitions and prolongations of sounds, syllables, words, or phrases as well as involuntary silent pauses or blocks in which the person who stutters is unable to produce sounds. Wikipedia

A speech disorder that sounds like cluttering, and a common word for cluttered speech. Wikipedia Disambiguation

Speech disorder in which the flow of speech is disrupted by involuntary repetitions and prolongations of sounds, syllables, words, or phrases as well as involuntary silent pauses or blocks in which the person who stutters is unable to produce sounds Wikidata

The involuntary repetition of a sound in speech. Wiktionary

Involuntary repetition of sounds in speech. Wiktionary (translation)

A speech disorder characterised by stuttering. Wiktionary

Speech disorder. Wiktionary (translation)

A speech disorder in which the flow of speech is disrupted by involuntary repetitions and prolongations of sounds, syllables, words or phrases, and by involuntary silent pauses or blocks in which the stutterer is unable to produce sounds. Wiktionary

A speech disorder. Wiktionary (translation)