Last Updated
：2026/01/06
幾何異性体
Hiragana
きかいせいたい
Noun
dated
Japanese Meaning
立体異性の一種で、二重結合や環構造などのために結合順序は同じだが、原子や置換基の空間的配置が異なることで互いに異なる性質を示す分子のこと。旧来は二重結合のcis/trans異性体や環状化合物のシス／トランス異性体を指して用いられた。 / 有機化学で用いられた古い用語で、現在のIUPACではより一般的な「立体異性体」や「E/Z異性体」などの用語に置き換えられている分子種。
Easy Japanese Meaning
おなじつくりのぶんしで、やくそくのかたちがちがうため、ならびかたがちがうもの
Chinese (Simplified) Meaning
几何异构体（旧称）：具有几何异构的分子 / 由双键或环引起构型差异（如顺/反）的异构体
Chinese (Traditional) Meaning
幾何異構體；具幾何異構性的分子 / 因雙鍵或環系受限旋轉而形成順反／E/Z差異的異構物
Korean Meaning
(유기화학) 기하 이성체; 치환기의 상대적 공간 배치 차이로 생기는 이성체 / IUPAC에서 사용이 권장되지 않는 오래된 용어
Vietnamese Meaning
Đồng phân hình học (thuật ngữ cũ; IUPAC không khuyến nghị). / Phân tử có các dạng cis–trans/E–Z do hạn chế quay quanh liên kết.
Tagalog Meaning
molekulang may heometrikong isomerismo / heometrikong isomero (terminong lipas) / isomerong nagkakaiba dahil sa ayos sa paligid ng dobleng bigkis o singsing
Sense（1）
(organic chemistry, dated, deprecated by IUPAC) geometric isomer: a molecule that exhibits geometric isomerism
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
(organic chemistry, dated, deprecated by IUPAC) geometric isomer: a molecule that exhibits geometric isomerism
See correct answer
幾何異性体
See correct answer
In organic chemistry, understanding geometric isomers is important.
In organic chemistry, understanding geometric isomers is important.
See correct answer
有機化学では、幾何異性体の理解が重要です。
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