ionosonde Hear it!

ionosonde definition

ion·o·sonde (ī än′ə sänd′)

noun

a pulse radar device operated at a frequency that can be varied from 1 to 25 megahertz: used to measure the height, thickness, etc. of ionospheric layers

Etymology: < ion + -o- + (radio)sonde

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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