labially

English

Etymology

From labial +‎ -ly.

Adverb

labially (comparative more labially, superlative most labially)

1. (linguistics, dentistry) In a labial manner; by means of the lips.
   • 2013, Carole Hollins, Questions and Answers for Dental Nurses, page 44:

     Transillumination of anterior teeth, using the composite curing light placed labially to shine through the tooth and be viewed using the mouth mirror, shows up any cavities as dark interproximal shadows.