cis

1. denoting or relating to a molecular structure in which two particular atoms or groups lie on the same side of a given plane in the molecule, 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.

   the cis isomer of stilbene

independent usage of cis-.

1. short for cisgender.

   we do not make arbitrary distinctions between trans and cis women

1. on this side of; on the side nearer to the speaker.

   cisatlantic

2. referring or relating to people whose sense of personal identity and gender corresponds with their birth sex.

   cisgender

   cissexism

3. denoting molecules with cis arrangements of substituents.

   cis -1,2-dichloroethene

from Latin cis ‘on this side of’.

abbreviation

Commonwealth of Independent States.