interdentality

\\ˌintə(r)(ˌ)den.ˈtaləd.ē\ noun

Etymology: International Scientific Vocabulary interdental + -ity

: interdental articulation:

a. : substitution of the interdental sounds \\th\\ and \th\\ for \\s\\ and \\z\\ respectively : lisp

b. : interdental articulation of other alveolars or dentals (as \\t\\, \\d\\, \\n\\, \\l\)