1. As the ameloblasts degenerate, a gingival sulcus is created.

2. An immature stage in cellular development before appearance of the definitive characteristics of the cell; used also as a word termination, as in ameloBlast and trophoBlast

3. The cytoplasm of ameloblasts, during primary and young enamel phases is characterized by an abundance of free ribosomes and a Branular endoplasmic reticulum; but during transitional and mineralized enamel phases, the cytoplasm of these cells shows little granular endoplasmic reticulum and free ribosomes, but ehe agranular endoplasmic reticulum