cis- Hear it!

cis- definition

cis- (sis)

  1. on this side of cisalpine
  2. subsequent to
  3. Chem. designating an isomer having certain atoms or groups on the same side of a given plane in the molecule: in chemical names, usually printed in italic type and hyphenated and disregarded in alphabetization cis-butene

Etymology: < L cis, on this side: see here

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.