Science Dictionary
contact   (kŏn'tākt')  Pronunciation Key 
  1. Electricity

    1. A connection between two conductors that allows an electric current to flow.

    2. A part or device that makes or breaks a connection in an electrical circuit.

  2. Geology The place where two different types of rock, or rocks of different ages, come together.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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