“+ noun
Etymology: International Scientific Vocabulary cycl- + hexane
: a colorless liquid saturated cyclic hydrocarbon C 6 H 12 having a pungent odor, found in petroleum, made synthetically by hydrogenation of benzene, and used chiefly as a solvent (as for resins and waxes) and in organic synthesis especially in making adipic acid; hexahydrobenzene — see naphthene