underbite

noun

un·​der·​bite ˈən-dər-ˌbīt How to pronounce underbite (audio)
plural underbites
: malocclusion in which the lower jaw and front teeth project beyond the upper front teeth : prognathism involving the lower jaw
Three years ago, Jack, a small Chihuahua mix with an endearing underbite and a lust for attention, was dropped off at the Haven Animal Care Shelter.Natalie Gross
… had braces to straighten his own teeth and surgery to correct a severe underbite, ….Jean P. Fisher
compare overbite

Word History

First Known Use

1887, in the meaning defined above

Time Traveler
The first known use of underbite was in 1887

Dictionary Entries Near underbite

Cite this Entry

“Underbite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underbite. Accessed 30 Jan. 2023.

Medical Definition

underbite

noun
un·​der·​bite ˈən-dər-ˌbīt How to pronounce underbite (audio)
: malocclusion in which the lower jaw and front teeth project beyond the upper front teeth : prognathism involving the lower jaw
… had braces to straighten his own teeth and surgery to correct a severe underbite, as well as whitening.Jean P. Fisher
compare overbite
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