Source : Webster's Revised Unabridged Dictionary (1913)

Intercept \In"ter*cept`\, n. (Math.)
   A part cut off or intercepted, as a portion of a line
   included between two points, or cut off two straight lines or
   curves.

Intercept \In`ter*cept"\, v. t. [imp. & p. p. {Intercepted}; p.
   pr. & vb. n. {Intercepting}.] [L. interceptus, p. p. of
   intercipere to intercept; inter between + capere to take,
   seize: cf. F. intercepter. See {Capable}.]
   1. To take or seize by the way, or before arrival at the
      destined place; to cause to stop on the passage; as, to
      intercept a letter; a telegram will intercept him at
      Paris.

            God will shortly intercept your breath. --Joye.

   2. To obstruct or interrupt the progress of; to stop; to
      hinder or oppose; as, to intercept the current of a river.

            Who intercepts me in my expedition?   --Shak.

            We must meet first, and intercept his course.
                                                  --Dryden.

   3. To interrupt communication with, or progress toward; to
      cut off, as the destination; to blockade.

            While storms vindictive intercept the shore. --Pope.

Source : WordNet®

intercept
     n : the point at which a line intersects a coordinate axis

intercept
     v 1: seize on its way; "The fighter plane was ordered to
          intercept an aircraft that had entered the country's
          airspace" [syn: {stop}]
     2: tap a telephone or telegraph wire to get information; "The
        FBI was tapping the phone line of the suspected spy"; "Is
        this hotel room bugged?" [syn: {wiretap}, {tap}, {bug}]