Webster's Revised Unabridged Dictionary · 1913

Intercept

Intercept , transitive verb

[Latin interceptus, past participle of intercipere to intercept; inter between + capere to take, seize: compare French 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? — Shakespeare
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
4.
(Mathematics) To include between; as, that part of the line which is intercepted between the points A and B.
5.
To overhear or view (a communication or message intended for another), without hindering its passage; as, to intercept a telephone call.
6.
(Sports) To catch and take possession of (a ball passed between members of an opposing team); as, the back intercepted the pass and ran the ball back for a touchdown.

Intercept , noun

(Mathematics) A part cut off or intercepted, as a portion of a line included between two points, or cut off two straight lines or curves.