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thionyl

[thahy-uh-nil]
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adjective Chemistry.
  1. sulfinyl.

Origin of thionyl

1870–75; < Greek theîon sulfur + -yl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for thionyl

thionyl

noun
  1. (modifier) of, consisting of, or containing the divalent group SOa thionyl group or radical; thionyl chloride Also: sulphinyl

Word Origin

C19 thion-, from Greek theion sulphur + -yl
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012