-phyllsuff. Leaf: sporophyll.[From Greek phullon, leaf; see phyllo-.]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.-phyll or -phyln combining form (Botany) leaf: chlorophyll. [from Greek phullon]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014-phyll or -phyl, a combining form meaning ?kind of leaf,? ?leaf structure,? ?plant structure?: sporophyll. Compare -phyl. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.