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glossoepiglottic glos·so·ep·i·glot·tic (glô'sō-ěp'ĭ-glŏt'ĭk) or glos·so·ep·i·glot·tid·e·an (glô'sō-ěp'ĭ-glŏ-tĭd'ē-ən)adj. Relating to the tongue and the epiglottis.