epiglottis
epi.glot.tis \-'gla:t-*s\ n [NL, fr. Gk epiglo-ttis, fr. epi- + glo-ttis glottis] : a thin plate of yellow elastic cartilage behind the tongue and in front of the glottis that covers the glottis during swallowing
Webster's English Dictionaryepi.glot.tis \-'gla:t-*s\ n [NL, fr. Gk epiglo-ttis, fr. epi- + glo-ttis glottis] : a thin plate of yellow elastic cartilage behind the tongue and in front of the glottis that covers the glottis during swallowing