thionyl Hear it!

thionyl definition

thio·nyl (t̸hī′ə nil)

noun

any of a group of inorganic compounds containing the divalent radical SO

Etymology: < Gr theion, sulfur (see thio-) + -yl

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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