geometric isomerism


ge·o·met·ric i·som·er·ism

a form of isomerism displayed by unsaturated or ring compounds where free rotation around a bond (usually a carbon-carbon bond) is restricted, for example, the isomerism of a cis- or trans- compound as in oleic acid and elaidic acid. Compare: cis-, entgegen, trans-, zusammen.

ge·o·met·ric i·so·mer·ism

(jē'ŏ-met'trik ī-som'ĕr-izm) A form of isomerism displayed by unsaturated or ring compounds where free rotation about a bond (usually a carbon-carbon bond) is restricted.
Compare: cis-, trans-