Illustrated Glossary of Organic Chemistry

S-cis: The conformation of a single bond separating two double bonds in which the double bonds have a dihedral angle of 0^o (the double bonds lie in the same plane and point in the same direction). The 's' in s-cis stands for 'single'.

s-cis-1,3-butadiene		s-trans-1,3-butadiene