thia-
1 of 2combining form (1)
variants or thi-
: containing sulfur in place of carbon or regarded as in place of carbon usually in place of the methylene group −CH2−
thiacyclohexane
thiadiazole
thiazole
compare aza-, oxa- thia-
2 of 2combining form (2)
: thi-
thiachroman
Word History
Etymology
Combining form (1)
International Scientific Vocabulary, from thi- + -a-