Definition of "cytokinin" []

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

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.

• "TDZ, a synthetic version of a naturally occurring plant compound known as a cytokinin, is not new."
• "Kinetin N6-furfuryladenine is a form of cytokinin, a plant-derived growth hormone that promotes cell division and slows the aging process in plant cells."
• "Plants with lower levels of Gn1a have more cytokinin available, which leads to better reproductive development and thus more grains."