dentilingual

from The Collaborative International Dictionary of English v.0.48

Dentilingual \Den`ti*lin"gual\, a. [L. dens tooth + E. lingual.]
   Produced by applying the tongue to the teeth or to the gums;
   or representing a sound so formed. -- n. A dentilingual sound
   or letter.
   [1913 Webster]

         The letters of this fourth, dentilingual or
         linguidental, class, viz., d, t, s, z, l, r. --Am. Cyc.
   [1913 Webster]