[ hoh-muh-sahy-klik, -sik-lik, hom-uh- ]
/ ˌhoʊ məˈsaɪ klɪk, -ˈsɪk lɪk, ˌhɒm ə- /

adjective Chemistry.

of or noting a cyclic compound having atoms of only one element, usually carbon, in the ring (contrasted with heterocyclic).
Also isocyclic.

Origin of homocyclic

First recorded in 1900–05; homo- + cyclic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for homocyclic

/ (ˌhəʊməʊˈsaɪklɪk, -ˈsɪk-, ˌhɒm-) /


(of an organic compound) containing a closed ring of atoms of the same kind, esp carbon atomsCompare heterocyclic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for homocyclic

[ hō′mə-sĭklĭk ]

Containing a closed ring structure made of only one kind of atom. Benzene, for example, is a homocyclic compound, having a ring consisting of six carbon atoms. Compare heterocyclic.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.