1. Two semicular membranes, situated at the top of the windpipe, and forming a small oblong aperture, which can be dilated or contracted at pleasure, and by the various vibratory motions of which the tones of the voice are modified.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• clotts,
• lotties,
• slotts,
• acittis,
• agrosttis,
• glatti,
• glositis,
• glottus,
• glotties,
• gottis,
• glottys,
• glottas,
• glottic,
• glotic,
• pilottism,
• glochis,
• rottis,
• gluttitis,
• gloetin,
• Glonois

• gluteus,
• gloats,
• glatz,
• glitz,
• clots,
• Gladis,
• glitters.

The adjective form of the word "glottis" is "glottal".