Planar lightwave circuit, photonic chip made by depositing doped and undoped layers of silica on a silicon substrate
Programmable logic controller, a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines.
Military
Platoon Leaders Course, A single ten week, or two six week program that the Marines use for possible OCS candidates, which is undertaken during the summer for college students
Parish Life Coordinator, a term used for a non-priest entrusted with the pastoral care of a Catholic parish under Canon 517.2 of the Catholic Church's Code of Canon Law
Professional Learning Community, a movement in the education field of teachers sharing with teachers to improve learning among their students