Definitions
from the GNU version of the Collaborative International Dictionary of English.
- A Latin preposition, sometimes used as a prefix in English words, and signifying
on this side .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- prefix On this
side of, e.g. Cis-Neptunian object. - prefix chemistry Forming names of chemical
compounds in which twoatoms orgroups aresituated on thesame side of someplane ofsymmetry passing through the compound.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From the Latin preposition cis ("on this side of").
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Examples
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I knew that in chemistry, molecules with atoms grouped on the same side are labeled with the Latin prefix “cis–,” while molecules with atoms grouped on opposite sides are referred to as “trans–.”
I Coined The Term 'Cisgender' 29 Years Ago. Here's What This Controversial Word Really Means. Dana Defosse 2023
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