Last Updated：2025/11/20
(chemistry, dated, deprecated by IUPAC) A form of isomerism in which, in one isomer two atoms or groups are on the same side of the plane of a double bond or ring, whereas in the other isomer they are on opposite sides; these are cis- and trans- isomers, respectively.
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geometric isomerism
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Source Word
geometric isomerism
Noun
dated
uncountable
Japanese Meaning
化学における異性体の一種で、分子内の二重結合や環構造において、原子または官能基が平面の同じ側（cis型）または反対側（trans型）に位置することにより生じる異性体現象
