geminated teeth

gem·i·nat·ed teeth

a developmental anomaly arising from the attempted division of one tooth bud, resulting in incomplete formation of two teeth and usually manifest as a bifid crown upon a single root.

gem·i·nat·ed teeth

(jemi-nā-tĕd tēth)
Developmental anomaly arising from attempted division of one tooth bud, resulting in incomplete formation of two teeth and usually manifest as a bifid crown on a single root.