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Any of several plant hormones that regulate various functions, including cell elongation.

[From Greek auxein, to grow; see aug- in Indo-European roots.]

aux·in′ic adj.
aux·in′i·cal·ly adv.
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.


(Plants) containing or relating to auxins
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.auxinic - relating to or containing auxins
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References in periodicals archive ?
(2013), studying doses of auxinic herbicides, including picloram, on bioindicator plants, reported the same symptoms found here and highlighted that visual phytotoxicity was the most adequate variable to detect low levels of picloram residues.
Young et al., "Early-season palmer amaranth and waterhemp control from preemergence ptograms utilizing 4-hydroxyphenylpyruvate dioxygenase-inhibiting and auxinic herbicides in soybean," Weed Technology, vol.
Auxinic herbicide resistant and susceptible wild mustard (Sinapis arvensis L.) biotypes: Effect of auxinic herbicides on seedling growth and auxin binding activity.