Source : Webster's Revised Unabridged Dictionary (1913)

Intersection \In`ter*sec"tion\, n. [L. intersectio: cf. F.
   intersection.]
   1. The act, state, or place of intersecting.

   2. (Geom.) The point or line in which one line or surface
      cuts another.

Source : WordNet®

intersection
     n 1: a point where lines intersect [syn: {intersection point}, {point
          of intersection}]
     2: a junction where one street or road crosses another [syn: {crossroad},
         {crossway}, {crossing}, {carrefour}]
     3: a point or set of points common to two or more geometric
        configurations
     4: the set of elements common to two or more sets; "the set of
        red hats is the intersection of the set of hats and the
        set of red things" [syn: {product}, {cartesian product}]
     5: a representation of common ground between theories or
        phenomena; "there was no overlap between their proposals"
        [syn: {overlap}, {convergence}]
     6: the act of intersecting (as joining by causing your path to
        intersect your target's path)