Definition of "glottis" [glot•tis]

• The opening between the vocal cords at the upper part of the larynx. (noun)
• The vocal apparatus of the larynx. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Surrounding the voice box (and the doctors in this room will bear this out) is what is known as the glottis wall."
• "As the air rushes past the glottis, which is still partially closed, a sound recalling the whoop of pertussis is heard."
• "Shock, loss of blood, asphyxia from blood entering the air-passages, and œdema of the glottis are the most frequent causes of death soon after the injury."