CIS- [CIS-] PREFIX [L, FR. CIS--MORE AT HE] 1: ON THIS SIDE "CISLUNAR"2. USU ITAL: CIS "CIS-DICHLOROETHYLENE"--COMPARE TRANS- 2B


Meaning of CIS- [CIS-] PREFIX [L, FR. CIS--MORE AT HE] 1: ON THIS SIDE "CISLUNAR"2. USU ITAL: CIS "CIS-DICHLOROETHYLENE"--COMPARE TRANS- 2B in English

cis [cis] adj [L, lit., on this side] (1888): characterized by having certain atoms or groups of atoms on the same side of the longitudinal axis of a double bond or of the plane of a ring in a molecule

Merriam-Webster English vocab.      Английский словарь Merriam Webster.