sulfines [obsolete]

S-Oxides of thioaldehydes and thioketones. Not recommended because in English the -ine termination should be reserved for amines, imines, etc., e.g. PhC(=S=O)H thiobenzaldehyde S-oxide.
Source:
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1369