tripinnate

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tri·pin·nate

 (trī-pĭn′āt′)
adj.
Having bipinnate leaflets or lobes that are themselves pinnately divided, as in the fronds of certain ferns.

tri·pin′nate′ly adv.
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.

tripinnate

(traɪˈpɪnɪt; -eɪt)
adj
(Botany) (of a bipinnate leaf) having the pinnules themselves pinnate
triˈpinnately adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

tri•pin•nate

(traɪˈpɪn eɪt)

also tri•pin′nat•ed,



adj.
bipinnate, as a leaf, with the divisions also pinnate.
[1750–60]
tri•pin′nate•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.tripinnate - (of a leaf shape) thrice pinnate
compound - composed of more than one part; "compound leaves are composed of several lobes; "compound flower heads"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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are not particularly distinctive, but the two species of Symphionema typically have pinnately to tripinnately dissected leaves (Telford, 1995) that would attract attention if found as fossils.