noun
glottis
GLAH-tis/ˈɡlɑːtɪs/
The opening between the vocal cords in the larynx.
Air passes through the glottis on its way to the lungs.

Etymology
The Greek word for a pipe’s mouthpiece supplied an anatomical name for the opening at the top of the windpipe. Today it names the gap between the vocal cords.
In context
This is followed almost immediately by the sudden closure of the vocal chords and the opening between them, which is called the glottis.
More examples
- The vocal cords move apart, widening the glottis.
- The doctor examines the glottis with a small camera.
- A glottal stop occurs when the glottis closes briefly.
Forms
glottis · glottises · glottides
glottal adjective — Relating to the glottis or its function.