01 A combining form (also used adjectively) denoting the presence of sulphur. See Sulpho-.
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1.
A combining form (also used adjectively) denoting the presence of sulphur. See Sulpho-.(Chem.) See: Sulpho-
Entry
1 sense
Webster, 1913
Thio-
· Thi·o-
· IPA /θaɪ.oʊ/