stam•merPronunciation: (stam'ur), [key]
to speak with involuntary breaks and pauses, or with spasmodic repetitions of syllables or sounds.
to say with a stammer (often fol. by out
a stammering mode of utterance.
a stammered utterance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.