1. Method for secondary primary cell adjustment and enodeb thereof

2. a primary cell or battery which has been electrically discharged to remove # % of its rated capacity; or

3. Chondrocyte and osteoblast are two primary cell types in the skeletal systems that are differentiated from common mesenchymal progenitors

4. Cellulose forms the primary structural component of green plants.The primary cell wall of green plants is made primarily of Cellulose; the secondary wall contains Cellulose with variable amounts of lignin.

5. A Cathode is the electrode through which the negatively charged electrons enter a device or a system from an external circuit in case of electrolytic cell, or it is the source of electrons in an electronic valve. In the case of a primary cell, the terminal can have a positive charge.