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1. Bearing numerous leaves; leafy.
2. Of, relating to, or resembling a leaf.
3. Of or relating to a lichen whose thallus is flat and leafy.
[Latin foliōsus, from folium, leaf; see folium.]
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.
[C18: from Latin foliōsus full of leaves]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
2. having a leaflike thallus loosely attached to a surface, as certain lichens. Compare crustose, fruticose.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.