three-way Hear it!

three-way definition

three·-way (t̸hrē′wā′)

adjective

  1. involving three directions, persons, etc. a three-way conversation
  2. Elec. designating or of:
    1. a light bulb with two filaments that can be switched on singly or together to produce three different levels of brightness
    2. a switch with three terminals, used to control a circuit from two different locations

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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