From The Collaborative International Dictionary of English v.0.48:
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.]
[1913 Webster]
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.
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God will shortly intercept your breath. --Joye.
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2. To obstruct or interrupt the progress of; to stop; to
hinder or oppose; as, to intercept the current of a river.
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Who intercepts me in my expedition? --Shak.
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We must meet first, and intercept his course.
--Dryden.
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3. To interrupt communication with, or progress toward; to
cut off, as the destination; to blockade.
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While storms vindictive intercept the shore. --Pope.
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4. (Math.) 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.
[PJC]
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.
[PJC]
Syn: To cut off; stop; catch; seize; obstruct.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
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.
[1913 Webster]