There are two types of vitamin D in the diet, ergocalciferol (D2) found in plants, and cholecalciferol (D3) found in animal foods. Of the two types of vitamin D, cholecalciferol (from animals) is much more potent than ergocalciferol.
Â· just now. Report Abuse. PCP means Primary Care Physician and SPC means Specialist. If you have an HMO plan you may be required to pick a Primary Care Physician (or some Point of Service POS plans may require this as well.).y thought is that you are looking at the PCP and SPC and ER on your health insurance ID card and next to it will be the co-payment (co-pay) amounts that you will pay if you have to see a Primary Care Physician (PCP) or a Specialist (SPC).
Freebase(0.00 / 0 votes)Rate this definition: cmp. cmp is a command line utility for computer systems that use Unix or a Unix-like operating system. It compares two files of any type and writes the results to the standard output.