radiometer Hear it!

radiometer definition

ra·di·om·eter (rā′dē äm′ə tər)

noun

  1. a device containing a set of vanes that are blackened on one side and suspended on an axis in a vacuum: the vanes rotate on exposure to sunlight
  2. an instrument for measuring radiant energy in any part of the electromagnetic spectrum

Etymology: radio- + -meter

Related Forms:

  • radiometric ra′dio·met′·ric (rā′dē ō met′rik) adjective
  • radiometry ra′·di·om′·etry noun

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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