adj. Of a class of organic compounds having both aliphatic (chain) and cyclic (ring) structure.
the GNU version of the Collaborative International Dictionary of English
adj. pertaining to compounds that have a ring in the structure, but are not aromatic, as cyclohexane or cyclohexene. Compare aliphatic and aromatic.
The Century Dictionary and Cyclopedia
In chem., a term introduced by Bamberger to designate a compound containing a ring of carbon atoms but at the same time having many of the properties of the aliphatic or open-chain compounds.
Word Usage
"University, was awarded the Nobel Prize in Chemistry "in recognition of his services to organic chemistry and the chemical industry by his pioneer work in the field of alicyclic compounds.""