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。

short for cisgender : used to describe a person whose gender matches the 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。

used to form the names of chemical substances in which the atoms are arranged on the same side of the molecule, especially on the same side of the carbon chain (= line of connected carbon atoms)

In 1969 researchers discovered that only the cis-DDP isomer killed tumours. 1969年，研究人员发现只有顺二氯二氨铂异构体才能杀死肿瘤。