trans-

on the other side of, to the other side of, over, across, through: transatlantic, transpierce
so as to change thoroughly: transliterate
above and beyond; transcending: transonic
Chem.
1. designating an isomer having certain atoms or groups on opposite sides of a given plane in the molecule (in chemical names, usually printed in italic type and hyphenated and disregarded in alphabetization): trans-butene
2. designating the elements beyond (a given element) in the periodic table: transuranium