Main Entry: elec·tor·al college
Function: noun
often cap E&C : a body of electors; specifically : the body of electors chosen from each state to elect the president and vice president of the U.S.
NOTE: Under Article II, Section 1 of the U.S. Constitution, each state chooses electors in the same number that the state has senators and representatives. The electors have the discretion to choose the candidate they vote for, but in practice the electors vote for the candidate that wins the most votes in their respective states. In all the states except Maine, the candidate that wins a plurality of the popular votes wins all of the state's electoral votes.
The point of the electoral college is to protect the Presidency from "local majorities". The way I see it, it keeps candidates from only visiting major cities and population hubs in order to get the most votes. The electoral college balances the power between the powerful cities and the more sparsely populated rural areas. Without the EC, no candidate would ever have to visit the entire midwest and Big Sky country. There are so few votes there, comparatively speaking, to make it worthwhile. The EC MAKES them worthwhile.