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tricostate

[trahy-kos-teyt, -kaw-steyt] /traɪˈkɒs teɪt, -ˈkɔ steɪt/
adjective, Botany, Zoology
1.
having three ribs, costae, or raised lines.
Origin
1860-1865
1860-65; tri- + costate
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for tricostate

tricostate

/traɪˈkɒsteɪt/
adjective
1.
(biology) having three ribs or riblike parts tricostate leaves
Word Origin
C19: from tri- + costate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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