NIEPCE'S PROCESS n.
A process, now no longer used, invented by J. N. Niepce, a French chemist, in 1829. It depends upon the action of light in rendering a thin layer of bitumen, with which the plate is coated, insoluble.
PROCESSION n. 7 definitions
g; regular, orderly, or ceremonious progress; continuous course. Bp. Pearson. That the procession of their life might be More equable, majestic, pure, and free. Trench.