Botany Not cyclic. Used especially of flowers whose parts are arranged in spirals rather than in whorls, as in magnolias.
Chemistry Having an open-chain molecular structure rather than a ring-shaped structure.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.