[ ey-sahy-klik, ey-sik-lik ]
/ eɪˈsaɪ klɪk, eɪˈsɪk lɪk /


not cyclic: an acyclic flower; acyclic compounds.
Chemistry. of or relating to a compound that does not contain a closed chain or ring of atoms (contrasted with cyclic).

Origin of acyclic

First recorded in 1875–80; a-6 + cyclic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for acyclic

/ (eɪˈsaɪklɪk, eɪˈsɪklɪk) /


chem not cyclic; having an open chain structure
botany having flower parts arranged in a spiral rather than a whorl
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

Scientific definitions for acyclic

[ ā-sīklĭk, ā-sĭklĭk ]

Not cyclic. Used especially of flowers whose parts are arranged in spirals rather than in whorls, as in magnolias.
Having an open-chain molecular structure rather than a ring-shaped structure.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.