odontoblastoma

[ō-dŏn′tə-blă-stōmə]
n.
  1. A tumor composed of neoplastic epithelial and mesenchymal cells that may differentiate into cells able to produce calcified tooth substances.
  2. An odontoma in its early formative stage.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.