glottal gap
Pronunciation: GLOT-al gap
Incomplete closure of the vocal folds during phonation resulting in air leakage and breathy voice quality.
Full Definition
A glottal gap refers to incomplete adduction of the vocal folds during phonation, resulting in a persistent opening that allows air to escape without contributing to voice production. This gap can be posterior (between the vocal processes), anterior (at the front of the vocal folds), or involve the entire length of the vocal folds. Glottal gaps commonly occur with vocal fold paralysis, presbyphonia, muscle tension dysphonia, or anatomical irregularities, and typically result in breathiness, reduced loudness, and vocal fatigue.
Usage
Usage note: Two words, not hyphenated. Distinguish from 'glottal fry' which involves irregular vocal fold vibration.
In Context
- "Videostroboscopy revealed a posterior glottal gap consistent with age-related vocal fold atrophy." — Voice evaluation report
- "The patient's breathy voice quality was attributed to a glottal gap secondary to unilateral vocal fold paralysis." — Clinical assessment