Definition of "lingual"

lingual

/ˈlɪŋ.ɡwəl/

adjective
not comparable
1. (anatomy, dentistry, relational) Related to, near, or on the side toward the tongue.
  1. (phonetics) Articulated with the tongue.
2. (linguistics, relational) Related to language or linguistics.
noun
plural linguals
1. (phonetics) A sound articulated with the tongue.