thioest

thio

[thahy-oh]
adjective Chemistry.
containing sulfur, especially in place of oxygen.

Origin:
independent use of thio-

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American Heritage
Medical Dictionary

thio- or thi-
pref.
Containing sulfur, used especially of a compound in which oxygen has been replaced by a divalent sulfur: thioacid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
thio- or thi-  
A prefix that means "containing sulfur," used especially of a compound in which an oxygen atom has been replaced by a sulfur atom, as in thiourea.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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