The opening between the vocal cords in the larynx; the part of your throat that vibrates to produce voice and sound.
From Greek 'glotta,' meaning tongue. The term was borrowed into anatomical terminology because the ancient Greeks recognized this opening's central role in speech, even without modern understanding of how it worked.
Your glottis vibrates 100+ times per second when you speak—it's nature's most impressive frequency controller, and even a tiny injury to it can completely change your voice forever.
Complete word intelligence in one call. Free tier — 50 lookups/day.