dentilingual

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 ]