Definition of "underbite" [underbite]

• Malocclusion in which the lower teeth protrude beyond the upper teeth. (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.

• "They jut from girls 'lids like an underbite, fanning the air in great whips of painted wind, and they form the fluttering basis of a trend spreading faster than conjunctivitis."
• "A stop at Crescent Street and Hoyt Avenue brings her Louise, a little Frenchie with a large underbite."
• "A suited man creeps from the edge of a crooked house smiling at her in an underbite."