Used attributively before nouns (e.g., "stammerer support group").
Definitions
stammerernoun
A person who has a speech disorder characterized by involuntary repetition or prolongation of sounds, syllables, or words, or by involuntary silent pauses or blocks in speech.
The speech therapist worked with the stammerer to help improve his fluency.
stammereradjective
Attributive: Relating to or intended for people who stammer.