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Relating to or characterized by isomerism.
Farlex Partner Medical Dictionary © Farlex 2012
Having or designating floral whorls with equal numbers of parts in each whorl.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
isomerous(of plants) having the same number of parts in different floral whorls; for example a plant may possess five stamens and five carpels.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005