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Related to didynamous: staminal
Having four stamens in two pairs of unequal length.
[From New Latin Didynamia, former class name : di- + Greek dunamis, power; see dynamic.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Botany) (of plants) having four stamens arranged in two pairs of unequal length, as in the foxglove
[C18: from New Latin Didynamia name of former class, from di-1 + Greek dunamis power, referring to the greater strength of the two long stamens]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014