Equally distant from the extreme either of a number of things or of one thing; mean; medial; as, the middle house in a row; a middle rank or station in life; flowers of middle summer; men of middle age.(adjective)
source: webster1913
noun (n)
an area that is approximately central within some larger region(noun.location)
The point or part equally distant from the extremities or exterior limits, as of a line, a surface, or a solid; an intervening point or part in space, time, or order of series; the midst; central portion(noun)
source: webster1913
adjective satellite (s)
being neither at the beginning nor at the end in a series(adj.all)