layering[lāˈər-ĭng] also lay·er·age [-ĭj]
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The process of rooting branches, twigs, or stems that are still attached to a parent plant, as by placing a specially treated part in moist soil.