A Victory for Sororities: Education Department Rules Sororities Are for Women Only

[naraht]

As a note, cis and trans as prefixes viewed as opposites goes back centuries as a concept in Chemistry. (for example) two Carbons linked by a double bond one of which has a Hydrogen and a Chlorine and the other a Hydrogen and a Fluorine exist in two forms. Cis, where the Chlorine and Flourine are on the same side of the carbon bond and trans where they are across from each other.