ameloblast A cylindrical epithelial cell in the innermost layer of the enamal organ. Their functions include contribution to the development of the dentinoenamel junction by the deposition of a layer of the matrix, thus producing the foundation for the prisms (the structural units of the dental enamal), and production of the matrix for the enamel prisms and interprismatic substance. (From Jablonski's Dictionary of Dentistry, 1992). CL:0000059 CL:0000059 TAO:0009028 teleost_anatomy true