From Longman Dictionary of Contemporary Englishglottisglot‧tis /ˈɡlɒtɪs $ ˈɡlɑː-/ noun [countable] technical HBPBODYthe space between your vocal cords which helps to make the sound of your voice. When this space is opened and closed, the movement produces a sound. —glottal adjectiveOrigin glottis (1500-1600) Greek glotta “tongue”
