The opening between the true vocal cords which is located in the larynx and affects voice modulation through expansion or contraction.
Late 16th century borrowing from New Latin glōttis, from Ancient Greek γλωττῐ́ς (glōttĭ́s, “mouth of the windpipe”), from γλῶττᾰ (glôttă, “tongue”) + -ῐς (-ĭs, feminine noun suffix). Cognates include Latin gula.
Improve your pronunciation
Practice speaking and memorizing "glottis" and many other words and sentences in English.