indicating that a chemical compound contains sulphur, esp denoting that a compound is derived from a specified compound by the replacement of an oxygen atom with a sulphur atom
thiol
thiosulphate
Word origin
from Greek theion sulphur
thio- in American English
(ˈθaɪoʊ; ˈθaɪə)
sulfur
used in many chemical terms to indicate the replacement of oxygen by divalent sulfur
thiourea
Word origin
< Gr theion, brimstone, sulfur, ult. < IE *dhwes- < base *dheu-, to smoke, fume > dull