Definition of supradental in US English:

supradental

adjective

  • 1Chiefly Zoology. Located above the teeth.

  • 2Phonetics. Of a speech sound or articulation: made by pressing the tip of tongue on or just above the top of the teeth. Variously used synonymously with alveolar, cerebral, and (occasionally) palatal.

noun

  • A supradental consonant.

Origin

Mid 19th century. From supra- + dental.