In anatomy and zoology: Of or pertaining to the tongue; glossal.Of or pertaining to a lingua or any tongue-like part See. phrases.Pronounced by or chiefly by the tongue: variously applied to sounds made with the tip or forward part of the tongue, as t, d, etc. (also called dental), or especially to the peculiar Sanskrit t, d, etc. (also called cacuminal, cerebral), forming a distinct class from the Sanskrit dentals, and pronounced with the tip of the tongue drawn back.Relating or pertaining to utterance, or of the use of the tongue in speaking: as, lingual corruptions of words or language.n. A letter pronounced in the manner described in I., 2.