underbite

under- +‎ bite

underbite (plural underbites)

1. A malocclusion, in which the lower teeth extend past the upper ones

underbite (third-person singular simple present underbites, present participle underbiting, simple past underbit, past participle underbitten)

1. To use insufficient acid in an etching process, so that the result is too shallow.

• overbite