PRINCIPLE n.
usually be separated by analysis; -- applied especially to drugs, plant extracts, etc. Cathartine is the bitter, purgative principle of senna. Gregory. Bitter principle, Principle of contradiction, etc. See under Bitter, Contradiction, etc.
PUBLIC-SERVICE CORPORATION; QUASI-PUBLIC CORPORATION n.
oration, such as a railroad company, lighting company, water company, etc., organized or chartered to follow a public calling or to render services more or less essential to the general public convenience or safety.