Dictionary.net

Epithelial cells surrounding the dental papilla and differentiated into three layers: the inner enamel epithelium, consisting of ameloblasts which eventually form the enamel, and the enamel pulp and external enamel epithelium, both of which atrophy and disappear before and upon eruption of the tooth, respectively.

Organ in gums of embryo which develops into the enamel.

Of Purkinje, the special enamel germ after it has become differentiated into a three-layered o. which covers the enlarged tooth papilla like a cap.