cis
adjective us/sɪs/ uk/sɪs/
chemistry specialized（同分异构体）顺式的
used to describe an isomer (= one of a group of similar chemical substances) in which the atoms are arranged on the same side of the molecule, especially on the same side of the carbon chain (= a line of connected carbon atoms)
The traditional cold-pressing method of extracting vegetable oils preserves the cis fatty acids in their natural form. 提取植物油时采取的传统冷压法保持了顺式脂肪酸的天然形态。
The polyacetylene chain can adopt two different shapes, called cis and trans, where the trans configuration is the most chemically stable. 聚乙炔链可以分为顺式和反式两种形态，其中反式结构化学性质最稳定。
- More examples
- Some of our samples show an increased ratio of the 16-and 18-carbon trans vaccenic acid to the cis isomer.
- Chemists initially make polyacetylene in the cis form, and convert this to the trans by heating it to 200°C in helium.
- Some of the double bonds that remain then change type, from cis to trans, and these have been found to be particularly damaging to our health (otherwise called "hydrogenated fat").
顺性别的（性别认同或性别表现与出生时的性别相一致的）
used to describe someone who feels that they are the same gender (= sex) as the physical body they were born with
They stress that trans women and cis women are all women. 他们强调跨性别女人和顺性别女人都是女人。
If you are cis you feel comfortable with your assigned birth sex and do not identify as another gender. 你如果是顺性别，就是认同自己的出生性别，不认为自己是另一个性别。
- More examples
- As a cis man, it's hard for me to understand what trans people go through.
- He dressed flamboyantly, but he was still a cis male.
- A cis female is a naturally-born woman or girl whose psychological gender identity is also female.
- Cis people do not necessarily conform to gender-stereotyped behaviours, appearances or roles.
Opposite: trans