~
■ prefix
1》 on this side of: cislunar.
↘ historical on the side nearer to Rome: cisalpine.
2》 closer to the present: ~Elizabethan.
3》 Chemistry (usu. ~ ) denoting molecules in which two particular atoms or groups lie on the same side of a given plane, in particular denoting an isomer in which substituents at opposite ends of a carbon–carbon double bond are on the same side of the bond: ~1,2-dichloroethene.
Origin
from L. cis .
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~
denoting molecules in which two particular atoms or groups lie on the same side of a given plane, in particular denoting an isomer in which substituents at opposite ends of a carbon–carbon double bond are on the same side of the bond:
→ ~