noun. The univalent radical derived from cyclohexane by the formal removal of a hydrogen atom.

"The fourth and final group of addictive substances includes anabolic androgenic steroids (AAS); inhalants like nitrous oxide, amyl nitrate, and solvents; phenyl cyclohexyl piperidine (PCP), which is also known as “Angel Dust”; and Ketamine."

cyclobutyl  cyclopentyl  cyclopropyl  

alkoxy  aryl  benzylic  bridgehead  carotenoid