thio- Hear it!

thio- definition

thio- (t̸hī′ō, -ə)

sulfur: used in many chemical terms to indicate the replacement of oxygen by divalent sulfur thiourea

Etymology: < Gr theion, brimstone, sulfur, ult. < IE *dhwes- < base *dheu-, to smoke, fume > dull

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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