cis-


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Related to cis-: 11-cis-retinal

cis-

1. Prefix (in italics) meaning on this side, on the near side; opposite of trans-.
2. genetics a prefix denoting the location of two or more genes on the same chromosome of a homologous pair, in coupling.
3. organic chemistry a form of geometric isomerism with regard to carbon-carbon double bonds. Identical functional groups on the same side of the double bond are cis-. When the four moieties attached to the carbons of the double bond are all different, then the E/Z nomenclature has to be followed. Synonym(s): zusammen (1)
[L.]

cis-

a prefix denoting on this side, the same side, or the near side.

cis-

1. Prefix meaning on this side, on the near side; opposite of trans-
2. genetics A prefix denoting the location of two or more genes on the same chromosome of a homologous pair, in coupling.
3. organic chemistry A prefix denoting a form of geometric isomerism in which similar functional groups are attached on the same side of the plane that includes two adjacent, fixed carbon atoms in a ring structure.
4. organic chemistry A prefix denoting a form of geometric isomerism with regard to carbon-carbon double bonds. Identical functional groups on the same side of the double bond are cis-. When the four moieties attached to the carbons of the double bond are all different, then the E/Z nomenclature has to be followed.
[L.]

cis-

Prefix denoting that two groups in a molecule are in the CIS CONFIGURATION. The prefix is usually italicized.