cis

1. (biology) Having two mutations on two genes on the same chromosome of a homologous pair.not-comparable

2. (cytology) Of the side of the Golgi apparatus nearer to the endoplasmic reticulum.not-comparable

3. (physical chemistry) In (or constituting, forming, or describing) a double bond in which the greater radical on both ends is on the same side of the bond.Examples: "9 is thought to survive longer when the CH = CH bond is cis and to favour the formation of another cis double bond in a propagation reaction involving its displacement by monomer. 10, on the other hand, is more likely to yield a trans double bond […]"; "However, a cis double bond causes a kink in the chain. (A cis double bond introduces a bend of about 42 into the linear hydrocarbon chain.)"; "A cis double bond is one where the hydrogen atoms are both on the same side. In contrast, a trans double bond has them on the opposite side."not-comparablephysical

4. (physical chemistry) In (or constituting, forming, or describing) a coordination compound in which the two instances of a particular ligand are adjacent to each other.Examples: "The cis effect is the labilization of ligands which are cis to certain other ligands."not-comparablephysical