the outer covering of the body. The skin is the largest organ of the body, and it performs a number of vital functions. It serves as a protective barrier against microorganisms. It helps shield the delicate, sensitive tissues underneath from mechanical and other injuries.
The definition of a direct primary election is when people vote for candidates of their political party by direct vote instead of by delegates at a convention.
Definition of primary for Students. 1  1 : first in time or development the primary grades. 2  2 : most important : main primary duties. 3  3 : not made or coming from something else : basic the primary source of information.  4 : relating to or being the heaviest of three levels of stress in pronunciation.