Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of a class of plant hormones that promote cell division and growth and delay the senescence of leaves.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry Any of a class of plant hormones involved in cell growth and division

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any of a class of plant hormones that promote cell division and delay the senescence of leaves

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