zusammen


zu·sam·men (Z),

(zu-sam'men), 1. Synonym(s): cis- (3) 2. A form of geometric isomerism with regard to carbon-carbon double bonds in which all four moieties attached to the carbons are different. If the substituents with the higher ranking (based on established rules) are on the same side of the double bond, Z is used. [Ger. together]