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Definition of Abscission layer
1. Noun. (context: biology botany) A layer of cells in a plant that differ from those above and below, and contain abundant starch and dense cytoplasm, which upon disorganization, begin the process of abscission, or the natural separation of the leaf from the rest of the plant.(reference-book last = first = authorlink = coauthors = editor =Gove, Philip Babcock others = title = Webster's Third International Dictionary of the English Language Unabridged origdate = origyear = 1909 origmonth = url = format = accessdate = accessyear = accessmonth = edition = date = year =1976 month = publisher =G. & C. Merriam Co. location = Springfield, MA language = id = doi = isbn =0-87779-101-5 lccn = ol = pages =6 chapter = chapterurl = quote =) ¹
¹ Source: wiktionary.com