From good ole Merriam:
Base:
a (1) : the lower part of a wall, pier, or column considered as a separate architectural feature (2) : the lower part of a complete architectural design b : the bottom of something considered as its support : foundation c (1) : a side or face of a geometrical figure from which an altitude can be constructed; especially : one on which the figure stands (2) : the length of a base d : that part of a bodily organ by which it is attached to another more central structure of the organism
2 a : a main ingredient b : a supporting or carrying ingredient (as of a medicine)
3 a : the fundamental part of something : groundwork, basis b : the economic factors on which in Marxist theory all legal, social, and political relations are formed
4 : the lower part of a heraldic field
5 a : the starting point or line for an action or undertaking b : a baseline in surveying c : a center or area of operations
I hope that cleared it up for you AND David.....
Shakey