幾何異性

Japanese

Kanji in this term
幾	何	異	性
き Grade: S	か Grade: 2	い Grade: 6	せい Grade: 5
kan’on		on’yomi	kan’on

Etymology

Compound of 幾何 (kika, “geometry, geometric”) +‎ 異性 (isei, “isomerism”),[1] possibly as a calque of English geometric isomerism.

Pronunciation

(Tokyo) きかいせー [kìká íꜜsèè] (Nakadaka – [3])[1]
IPA^(key): [kʲika̠ ise̞ː]

Noun

幾(き)何(か)異(い)性(せい) • (kika isei)

(organic chemistry, dated, deprecated by IUPAC) geometric isomerism
Synonym: シス-トランス異性 (shisu-toransu isei)

Usage notes

Superseded in modern usage by the term シス-トランス異性 (shisu-toransu isei, “cis-trans isomerism”).

Derived terms

幾(き)何(か)異(い)性(せい)体(たい) (kika iseitai): a geometric isomer, a cis-trans isomer: a molecule that exhibits cis-trans isomerism

References

Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tōkyō: Sanseidō, →ISBN

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