more multichannelled

Science Dictionary
channel   (chān'əl)  Pronunciation Key 
  1. A specified frequency band for the transmission and reception of electromagnetic signals, as for television signals.

  2. The part of a field effect transistor, usually U-shaped, through which current flows from the source to the drain. See more at field effect transistor.

  3. A pathway through a protein molecule in a cell membrane that modulates the electrical potential across the membrane by controlling the passage of small inorganic ions into and out of the cell.

  4. The bed or deepest part of a river or harbor.

  5. A large strait, especially one that connects two seas.


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