Meaning of glottalization | Babel Free

Definitions

1. The act or process of constricting or closing the glottis during the production of a speech sound that normally does not involve such constriction.
   countable, uncountable
2. Transformation of a consonant into a glottal stop or fricative.
   countable, uncountable

Examples

“Examples of glottalization include creaky voice, and the interrupted tones of Vietnamese.”

CEFR level